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• Do you put #import s in .h or .m files?

  - by iter

  I wonder about Objective-C style. I have FooClass.[hm] that depends on BarClass.[hm] for its implementation (though not for its interface). I can #import "BarClass.h" either directly in FooClass.m or indirectly through FooClass.h. I wonder about the common choice for this.

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• How to make a character jump, both on objects and just normal jump.

  - by haxerflaxer

  Hi, I'm kind of a beginner when it comes to java programming, and I have a project in school where I'm going to create a game much like Icy Tower. And my question is, how am I going to write to make the character stand on the ground and be able to jump up on objects? Here's my code so far: Part one package Sprites; import java.awt.Image; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; public class jumper { private String jump = "oka.png"; private int dx; private int dy; private int x; private int y; private Image image; public jumper() { ImageIcon ii = new ImageIcon(this.getClass().getResource(jump)); image = ii.getImage(); x = 50; y = 100; } public void move() { x += dx; y += dy; } public int getX() { return x; } public int getY() { return y; } public Image getImage() { return image; } public void keyPressed(KeyEvent e) { int key = e.getKeyCode(); if (key == KeyEvent.VK_LEFT) { dx = -5; ImageIcon ii = new ImageIcon(this.getClass().getResource("oki.png")); image = ii.getImage(); } if (key == KeyEvent.VK_RIGHT){ dx = 5; ImageIcon ii = new ImageIcon(this.getClass().getResource("oka.png")); image = ii.getImage(); } if (key == KeyEvent.VK_SPACE) { dy = -5; } if (key == KeyEvent.VK_DOWN) { dy = 5; } } public void keyReleased(KeyEvent e) { int key = e.getKeyCode(); if (key == KeyEvent.VK_LEFT) { dx = 0; } if (key == KeyEvent.VK_RIGHT){ dx = 0; } if (key == KeyEvent.VK_SPACE) { dy = 0; } if (key == KeyEvent.VK_DOWN) { dy = 0; } } } Part two package Sprites; import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import javax.swing.JPanel; import javax.swing.Timer; public class board extends JPanel implements ActionListener { private Timer klocka; private jumper jumper; public board() { addKeyListener(new TAdapter()); setFocusable(true); setBackground(Color.WHITE); setDoubleBuffered(true); jumper = new jumper(); klocka = new Timer(5, this); klocka.start(); } public void paint(Graphics g) { super.paint(g); Graphics2D g2d = (Graphics2D)g; g2d.drawImage(jumper.getImage(), jumper.getX(), jumper.getY(), this); Toolkit.getDefaultToolkit().sync(); g.dispose(); } public void actionPerformed(ActionEvent e) { jumper.move(); repaint(); } private class TAdapter extends KeyAdapter { public void keyReleased(KeyEvent e) { jumper.keyReleased(e); } public void keyPressed(KeyEvent e) { jumper.keyPressed(e); } } } Part three package Sprites; import javax.swing.JFrame; public class RType extends JFrame { public RType() { add(new board()); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(800, 600); setLocationRelativeTo(null); setTitle("R - type"); setResizable(false); setVisible(true); } public static void main(String[] args) { new RType(); } } I really appreciate all the help I can get!

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• How do you make a character jump, both on objects and just normal jump?

  - by haxerflaxer

  Hi, I'm kind of a beginner when it comes to java programming, and I have a project in school where I'm going to create a game much like Icy Tower. And my question is, how am I going to write to make the character stand on the ground and be able to jump up on objects? Here's my code so far: Part one package Sprites; import java.awt.Image; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; public class jumper { private String jump = "oka.png"; private int dx; private int dy; private int x; private int y; private Image image; public jumper() { ImageIcon ii = new ImageIcon(this.getClass().getResource(jump)); image = ii.getImage(); x = 50; y = 100; } public void move() { x += dx; y += dy; } public int getX() { return x; } public int getY() { return y; } public Image getImage() { return image; } public void keyPressed(KeyEvent e) { int key = e.getKeyCode(); if (key == KeyEvent.VK_LEFT) { dx = -5; ImageIcon ii = new ImageIcon(this.getClass().getResource("oki.png")); image = ii.getImage(); } if (key == KeyEvent.VK_RIGHT){ dx = 5; ImageIcon ii = new ImageIcon(this.getClass().getResource("oka.png")); image = ii.getImage(); } if (key == KeyEvent.VK_SPACE) { dy = -5; } if (key == KeyEvent.VK_DOWN) { dy = 5; } } public void keyReleased(KeyEvent e) { int key = e.getKeyCode(); if (key == KeyEvent.VK_LEFT) { dx = 0; } if (key == KeyEvent.VK_RIGHT){ dx = 0; } if (key == KeyEvent.VK_SPACE) { dy = 0; } if (key == KeyEvent.VK_DOWN) { dy = 0; } } } Part two package Sprites; import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import javax.swing.JPanel; import javax.swing.Timer; public class board extends JPanel implements ActionListener { private Timer klocka; private jumper jumper; public board() { addKeyListener(new TAdapter()); setFocusable(true); setBackground(Color.WHITE); setDoubleBuffered(true); jumper = new jumper(); klocka = new Timer(5, this); klocka.start(); } public void paint(Graphics g) { super.paint(g); Graphics2D g2d = (Graphics2D)g; g2d.drawImage(jumper.getImage(), jumper.getX(), jumper.getY(), this); Toolkit.getDefaultToolkit().sync(); g.dispose(); } public void actionPerformed(ActionEvent e) { jumper.move(); repaint(); } private class TAdapter extends KeyAdapter { public void keyReleased(KeyEvent e) { jumper.keyReleased(e); } public void keyPressed(KeyEvent e) { jumper.keyPressed(e); } } } Part three package Sprites; import javax.swing.JFrame; public class RType extends JFrame { public RType() { add(new board()); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(800, 600); setLocationRelativeTo(null); setTitle("R - type"); setResizable(false); setVisible(true); } public static void main(String[] args) { new RType(); } } I really appreciate all the help I can get!

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• How do I import XSD files into IntelliJ IDEA 9.0.1?

  - by shrooty

  I am new to IntelliJ and to creating XSD files. In the "Create Project" wizard, there is no option to create an XML project. Do I create a Java project and then try to import the files?

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• how to use import javax.microedition.io.HttpConnection; in SE Application in Java

  - by Nubkadiya

  i want to use this import javax.microedition.io.HttpConnection; package in my SE application. my purpose is to connect to the webserver to download a image. i found this code while searching. that code was designed to ME application. can soemone help me to find this for SE application.

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• Android Video Camera : still picture

  - by Alex

  I use the camera intent to capture video. Here is the problem: If I use this line of code, I can record video. But onActivityResult doesn't work. Intent intent = new Intent("android.media.action.VIDEO_CAMERA"); If I use this line of code, after press the recording button, the camera is freezed, I mean, the picture is still. Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE); BTW, when I use $Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); to capture a picture, it works fine. The java file is as follows: package com.camera.picture; import java.io.File; import java.text.SimpleDateFormat; import java.util.Date; import android.app.Activity; import android.content.ContentValues; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.Toast; import android.widget.VideoView; public class PictureCameraActivity extends Activity { private static final int IMAGE_CAPTURE = 0; private static final int VIDEO_CAPTURE = 1; private Button startBtn; private Button videoBtn; private Uri imageUri; private Uri videoUri; private ImageView imageView; private VideoView videoView; /** Called when the activity is first created. * sets the content and gets the references to * the basic widgets on the screen like * {@code Button} or {@link ImageView} */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); imageView = (ImageView)findViewById(R.id.img); videoView = (VideoView)findViewById(R.id.videoView); startBtn = (Button) findViewById(R.id.startBtn); startBtn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { startCamera(); } }); videoBtn = (Button) findViewById(R.id.videoBtn); videoBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub startVideoCamera(); } }); } public void startCamera() { Log.d("ANDRO_CAMERA", "Starting camera on the phone..."); String fileName = "testphoto.jpg"; ContentValues values = new ContentValues(); values.put(MediaStore.Images.Media.TITLE, fileName); values.put(MediaStore.Images.Media.DESCRIPTION, "Image capture by camera"); values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg"); imageUri = getContentResolver().insert( MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values); Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri); intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); startActivityForResult(intent, IMAGE_CAPTURE); } protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == IMAGE_CAPTURE) { if (resultCode == RESULT_OK){ Log.d("ANDROID_CAMERA","Picture taken!!!"); imageView.setImageURI(imageUri); } } if (requestCode == VIDEO_CAPTURE) { if (resultCode == RESULT_OK) { Log.d("ANDROID_CAMERA","Video taken!!!"); Toast.makeText(this, "Video saved to:\n" + data.getData(), Toast.LENGTH_LONG).show(); videoView.setVideoURI(videoUri); } } } private void startVideoCamera() { // TODO Auto-generated method stub //create new Intent Log.d("ANDRO_CAMERA", "Starting camera on the phone..."); String fileName = "testvideo.mp4"; ContentValues values = new ContentValues(); values.put(MediaStore.Video.Media.TITLE, fileName); values.put(MediaStore.Video.Media.DESCRIPTION, "Video captured by camera"); values.put(MediaStore.Video.Media.MIME_TYPE, "video/mp4"); videoUri = getContentResolver().insert( MediaStore.Video.Media.EXTERNAL_CONTENT_URI, values); Intent intent = new Intent("android.media.action.VIDEO_CAMERA"); //Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE); intent.putExtra(MediaStore.EXTRA_OUTPUT, videoUri); intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // start the Video Capture Intent startActivityForResult(intent, VIDEO_CAPTURE); } private static File getOutputMediaFile() { // TODO Auto-generated method stub // To be safe, you should check that the SDCard is mounted // using Environment.getExternalStorageState() before doing this. File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES), "MyCameraApp"); // This location works best if you want the created images to be shared // between applications and persist after your app has been uninstalled. // Create the storage directory if it does not exist if (! mediaStorageDir.exists()){ if (! mediaStorageDir.mkdirs()){ Log.d("MyCameraApp", "failed to create directory"); return null; } } // Create a media file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()); File mediaFile; mediaFile = new File(mediaStorageDir.getPath() + File.separator + "VID_"+ timeStamp + ".mp4"); return mediaFile; } /** Create a file Uri for saving an image or video */ private static Uri getOutputMediaFileUri(){ return Uri.fromFile(getOutputMediaFile()); } }

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• Twitter like gmail and yahoo mail contacts import in php....

  - by MuraliVijay CSK

  I am using php codeigniter and i am trying to import my contacts from my gmail and yahoomail exactly like twitter... I dont know how to get started? Any suggestion?

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• How can I import a partition from one table into another in Oracle?

  - by DaUltimateTrooper

  I would like to know if the following steps are possible and how fast this is: Create a partition named part1 in Table A Drop partition part1 in Table B Import the Table A partition part1 into Table B Can you provide me with an example if it is possible indeed? Or any resources I can look at?

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• Java -Android. Parser problem

  - by Kano

  I am making a very simple app with an RSS reader. The reader works great, but it's only giving me the title, and i want the description too. I'am very new to android, and I have tried a lot of things, but I can't get it to work. I've found a lot of parsers but they are to complicated for me to understand, so I was hoping to find a simple solution, since it's only title and description i want. Can anyone help me? import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import javax.xml.parsers.ParserConfigurationException; import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.InputSource; import org.xml.sax.SAXException; import org.xml.sax.XMLReader; import org.xml.sax.helpers.DefaultHandler; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class NyhedActivity extends Activity { String streamTitle = ""; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.nyheder); TextView result = (TextView)findViewById(R.id.result); try { URL rssUrl = new URL("http://tv2sport.dk/rss/*/*/*/248/*/*"); SAXParserFactory mySAXParserFactory = SAXParserFactory.newInstance(); SAXParser mySAXParser = mySAXParserFactory.newSAXParser(); XMLReader myXMLReader = mySAXParser.getXMLReader(); RSSHandler myRSSHandler = new RSSHandler(); myXMLReader.setContentHandler(myRSSHandler); InputSource myInputSource = new InputSource(rssUrl.openStream()); myXMLReader.parse(myInputSource); result.setText(streamTitle); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); result.setText("Cannot connect RSS!"); } catch (ParserConfigurationException e) { // TODO Auto-generated catch block e.printStackTrace(); result.setText("Cannot connect RSS!"); } catch (SAXException e) { // TODO Auto-generated catch block e.printStackTrace(); result.setText("Cannot connect RSS!"); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); result.setText("Cannot connect RSS!"); } } private class RSSHandler extends DefaultHandler { final int stateUnknown = 0; final int stateTitle = 1; int state = stateUnknown; int numberOfTitle = 0; String strTitle = ""; String strElement = ""; @Override public void startDocument() throws SAXException { // TODO Auto-generated method stub strTitle = "Nyheder fra "; } @Override public void endDocument() throws SAXException { // TODO Auto-generated method stub strTitle += ""; streamTitle = "" + strTitle; } @Override public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { // TODO Auto-generated method stub if (localName.equalsIgnoreCase("title")) { state = stateTitle; strElement = ""; numberOfTitle++; } else { state = stateUnknown; } } @Override public void endElement(String uri, String localName, String qName) throws SAXException { // TODO Auto-generated method stub if (localName.equalsIgnoreCase("title")) { strTitle += strElement + "\n"+"\n"; } state = stateUnknown; } @Override public void characters(char[] ch, int start, int length) throws SAXException { // TODO Auto-generated method stub String strCharacters = new String(ch, start, length); if (state == stateTitle) { strElement += strCharacters; } } } }

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• import a text file into a temporary table using 'Load data infile' in a stored procedure- MySQL

  - by Pankaj

  I need to import a text file into a temporary table and from that select portions of it to insert in different tables. I wanted to use 'LOAD DATA INFILE'. Is there any way, i can use 'Load data infile' in a stored procedure. I am using mysql. LOAD DATA LOCAL INFILE 'C:\\MyData.txt' INTO TABLE tempprod fields terminated by ',' lines terminated by '\r\n'; SELECT * FROM product p;

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• Is there a way to import flash swf files into Flex?

  - by Adam

  I need "loading" animations to import into Flex for a search engine so the person knows something is being searched. I'm not sure how to do this.... Is it through swc files?

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• Import a shared object and call its funtions in C++.

  - by Eduardo

  Is it possible to import a shared object (without linking the program with it) and call any function? Thanks.

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• How to import signed applet certificate into the client machine?

  - by subu

  How could i import the certificat into the client machine? Does any parameter in exist to do this ? How could i grant the permission to my applet on the client machine since the server Apache? How could i generate a cab-file for IE?

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• Developed android application cannot connect to phpmyadmin

  - by user1850936

  I am developing an app with eclipse. I tried to store the data that key in by user into database in phpmyadmin. Unfortunately, after the user has clicked on submit button, there is no response and data is not stored in my database. Here is my java file: import java.util.ArrayList; import java.util.List; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONObject; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.RadioButton; import android.content.res.Configuration; public class UserRegister extends Activity { JSONParser jsonParser = new JSONParser(); EditText inputName; EditText inputUsername; EditText inputEmail; EditText inputPassword; RadioButton button1; RadioButton button2; Button button3; int success = 0; private static String url_register_user = "http://10.20.92.81/database/add_user.php"; private static final String TAG_SUCCESS = "success"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_user_register); inputName = (EditText) findViewById(R.id.nameTextBox); inputUsername = (EditText) findViewById(R.id.usernameTextBox); inputEmail = (EditText) findViewById(R.id.emailTextBox); inputPassword = (EditText) findViewById(R.id.pwTextBox); Button button3 = (Button) findViewById(R.id.regSubmitButton); button3.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { String name = inputName.getText().toString(); String username = inputUsername.getText().toString(); String email = inputEmail.getText().toString(); String password = inputPassword.getText().toString(); if (name.contentEquals("")||username.contentEquals("")||email.contentEquals("")||password.contentEquals("")) { AlertDialog.Builder builder = new AlertDialog.Builder(UserRegister.this); builder.setMessage(R.string.nullAlert) .setTitle(R.string.alertTitle); builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { } }); AlertDialog dialog = builder.show(); } // creating new product in background thread RegisterNewUser(); } }); } public void RegisterNewUser() { try { String name = inputName.getText().toString(); String username = inputUsername.getText().toString(); String email = inputEmail.getText().toString(); String password = inputPassword.getText().toString(); // Building Parameters List<NameValuePair> params = new ArrayList<NameValuePair>(); params.add(new BasicNameValuePair("name", name)); params.add(new BasicNameValuePair("username", username)); params.add(new BasicNameValuePair("email", email)); params.add(new BasicNameValuePair("password", password)); // getting JSON Object // Note that create product url accepts POST method JSONObject json = jsonParser.makeHttpRequest(url_register_user, "GET", params); // check log cat for response Log.d("Send Notification", json.toString()); success = json.getInt(TAG_SUCCESS); if (success == 1) { // successfully created product Intent i = new Intent(getApplicationContext(), StudentLogin.class); startActivity(i); finish(); } else { // failed to register } } catch (Exception e) { e.printStackTrace(); } } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); } } my php file: <?php $response = array(); require_once __DIR__ . '/db_connect.php'; $db = new DB_CONNECT(); if (isset($_GET['name']) && isset($_GET['username']) && isset($_GET['email']) && isset($_GET['password'])) { $name = $_GET['name']; $username = $_GET['username']; $email = $_GET['email']; $password = $_GET['password']; // mysql inserting a new row $result = mysql_query("INSERT INTO register(name, username, email, password) VALUES('$name', '$username', '$email', '$password')"); // check if row inserted or not if ($result) { // successfully inserted into database $response["success"] = 1; $response["message"] = "You are successfully registered to MEMS."; // echoing JSON response echo json_encode($response); } else { // failed to insert row $response["success"] = 0; $response["message"] = "Oops! An error occurred."; // echoing JSON response echo json_encode($response); } } else { // required field is missing $response["success"] = 0; $response["message"] = "Required field(s) is missing"; // echoing JSON response echo json_encode($response); } ?> the log cat is as follows: 11-25 10:37:46.772: I/Choreographer(638): Skipped 30 frames! The application may be doing too much work on its main thread.

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• JAVA-SQL- Data Migration - ResultSets comparing Failing JUnit test

  - by user1865053

  I CANNOT get this JUnit Test to pass for the life of me. Can somebody point out where this has gone wrong. I am doing a data migration(MSSQL SERVER 2005), but I have the sourceDBUrl and the targetDCUrl the same URL so to narrow it down to syntax errors. So that is what I have, a syntax error. I am comparing the results of a table for the query SELECT programmeapproval, resourceapproval FROM tr_timesheet WHERE timesheetid = ? and the test always fails, but passes for other junit tests I have developed. I created 3 diffemt resultSetsEqual methods and none work. Yet, some other JUnit tests I have developed have PASSED. THE QUERY: SELECT timesheetid, programmeapproval, resourceapproval FROM tr_timesheet Returns three columns timesheetid (PK,int, not null) (populated with a range of numbers 2240 - 2282) programmeapproval (smallint,not null) (populated with the number 1 in every field) resourceapproval (smallint, not null) (populated with a number 1 in every field) When I run the query that is embedded in the code it only returns one row with the programmeapproval and resourceapproval columns and both field populated with the number 1. I have all jdbc drivers correctly installed and tested for connectivity. The JUnit Test is failing at this point according to the IDE. assertTrue(helper.resultSetsEqual2(sourceVal,targetVal)); This is the code: /*THIS IS A JUNIT CLASS****? package a7.unittests.dao; import static org.junit.Assert.assertTrue; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.Types; import org.junit.Test; import artemispm.tritonalerts.TimesheetAlert; public class UnitTestTimesheetAlert { @Test public void testQUERY_CHECKALERT() throws Exception{ UnitTestHelper helper = new UnitTestHelper(); Connection con = helper.getConnection(helper.sourceDBUrl); Connection conTarget = helper.getConnection(helper.targetDBUrl); PreparedStatement stmt = con.prepareStatement("select programmeapproval, resourceapproval from tr_timesheet where timesheetid = ?"); stmt.setInt(1, 2240); ResultSet sourceVal = stmt.executeQuery(); stmt = conTarget.prepareStatement("select programmeapproval, resourceapproval from tr_timesheet where timesheetid = ?"); stmt.setInt(1,2240); ResultSet targetVal = stmt.executeQuery(); assertTrue(helper.resultSetsEqual2(sourceVal,targetVal)); }} /*END**/ /*THIS IS A REGULAR CLASS**/ package a7.unittests.dao; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; public class UnitTestHelper { static String sourceDBUrl = "jdbc:sqlserver://127.0.0.1:1433;databaseName=a7itm;user=a7user;password=a7user"; static String targetDBUrl = "jdbc:sqlserver://127.0.0.1:1433;databaseName=a7itm;user=a7user;password=a7user"; public Connection getConnection(String url)throws Exception{ return DriverManager.getConnection(url); } public boolean resultSetsEqual3 (ResultSet rs1, ResultSet rs2) throws SQLException { int col = 1; //ResultSetMetaData metadata = rs1.getMetaData(); //int count = metadata.getColumnCount(); while (rs1.next() && rs2.next()) { final Object res1 = rs1.getObject(col); final Object res2 = rs2.getObject(col); // Check values if (!res1.equals(res2)) { throw new RuntimeException(String.format("%s and %s aren't equal at common position %d", res1, res2, col)); } // rs1 and rs2 must reach last row in the same iteration if ((rs1.isLast() != rs2.isLast())) { throw new RuntimeException("The two ResultSets contains different number of columns!"); } } return true; } public boolean resultSetsEqual (ResultSet source, ResultSet target) throws SQLException{ while(source.next()) { target.next(); ResultSetMetaData metadata = source.getMetaData(); int count = metadata.getColumnCount(); for (int i =1; i<=count; i++) { if(source.getObject(i) != target.getObject(i)) { return false; } } } return true; } public boolean resultSetsEqual2 (ResultSet source, ResultSet target) throws SQLException{ while(source.next()) { target.next(); ResultSetMetaData metadata = source.getMetaData(); int count = metadata.getColumnCount(); for (int i =1; i<=count; i++) { if(source.getObject(i).equals(target.getObject(i))) { return false; } } } return true; } } /END***/ /*PASTED NEW CLASS - THIS IS A JUNIT TEST CLASS*/ package a7.unittests.dao; import static org.junit.Assert.*; import java.sql.Connection; import java.sql.DriverManager; import org.junit.Test; public class TestDatabaseConnection { @Test public void testConnection() throws Exception{ UnitTestHelper helper = new UnitTestHelper(); Connection con = helper.getConnection(helper.sourceDBUrl); Connection conTarget = helper.getConnection(helper.targetDBUrl); assertTrue(con != null && conTarget != null); } } /**END***/

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• Dereferencing possible null pointer in java

  - by Nealio

  I am just starting to get into graphics and when I am trying to get the graphics, I get the error"Exception in thread "Thread-2" java.lang.NullPointerException" and I have no clue on what is going on! Any help is greatly appreciated. //The display class for the game //Crated: 10-30-2013 //Last Modified: 10-30-2013 package gamedev; import gamedev.Graphics.Render; import gamedev.Graphics.Screen; import java.awt.Canvas; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Toolkit; import java.awt.image.BufferStrategy; import java.awt.image.BufferedImage; import java.awt.image.DataBufferInt; import javax.swing.JFrame; private void tick() { } private void render() { System.out.println("display.render"); BufferStrategy bs = this.getBufferStrategy(); if (bs == null) { createBufferStrategy(3); } for (int i = 0; i < GAMEWIDTH * GAMEHEIGHT; i++) { pixels[i] = screen.PIXELS[i]; } screen.Render(); //The line of code that is the problem Graphics g = bs.getDrawGraphics(); //end problematic code g.drawImage(img, 0, 0, GAMEWIDTH, GAMEHEIGHT, null); g.dispose(); bs.show(); }

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• How can I import color schemes into Visual Studio 2010?

  - by Andrew

  I recently came across this website: http://studiostyles.info, which contains a list of color schemes that people have already created. However, I can't find instructions on how to import them into Visual Studio 2010, does anyone know how? PS: I am sorry, if this question has been asked but I cannot find an answer, through search.

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• How can you store JSP buffered output from an include/import to a variable?

  - by codeninja

  I don't want to use any JAVA, I just want to use <jsp:include> or <c:import> or something to that effect.. so that I can use <c:set var="myPage" value="bufferedPageOutput" /> to output the generated html later How can I do this with JSP/JSTL/Struts ?

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• What tool do you use to export/import groups and user IDs on Windows servers?

  - by Alex

  Hi. What's a free tool to export the groups and users on a Windows server and then import them again on a rebuilt system? Thanks.

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• Embedded Tomcat Cluster

  - by ThreaT

  Can someone please explain with an example how an Embedded Tomcat Cluster works. Would a load balancer be necessary? Since we're using embedded tomcat, how would two separate jar files (each a standalone web application with their own embedded tomcat instance) know where eachother are and let eachother know their status, etc? Here is the code I have so far which is just a regular embedded tomcat without any clustering: import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.File; import java.io.IOException; import java.io.Writer; public class Main { public static void main(String[] args) throws LifecycleException, InterruptedException, ServletException { Tomcat tomcat = new Tomcat(); tomcat.setPort(8080); Context ctx = tomcat.addContext("/", new File(".").getAbsolutePath()); Tomcat.addServlet(ctx, "hello", new HttpServlet() { protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { Writer w = resp.getWriter(); w.write("Hello, World!"); w.flush(); } }); ctx.addServletMapping("/*", "hello"); tomcat.start(); tomcat.getServer().await(); } } Source: java dzone

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• Where will the image be saved? [closed]

  - by Dummy Derp

  import java.awt.Dimension; import java.awt.Rectangle; import java.awt.Robot; import java.awt.Toolkit; import java.awt.image.BufferedImage; import javax.imageio.ImageIO; import java.io.File; ... public void captureScreen(String fileName) throws Exception { Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); Rectangle screenRectangle = new Rectangle(screenSize); Robot robot = new Robot(); BufferedImage image = robot.createScreenCapture(screenRectangle); ImageIO.write(image, "png", new File(fileName)); } ... Going over this code I found on the internet. I got everything except the part where file is created. In what format file name should be? Should it be C:/myFolder/myImage.png" or just myImage.png and where will it be saved? Here is what docs say: File public File(String pathname) Creates a new File instance by converting the given pathname string into an abstract pathname. If the given string is the empty string, then the result is the empty abstract pathname. Parameters: pathname - A pathname string Throws: NullPointerException - If the pathname argument is null

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• How can I be able to create a folder node on companyhome in Alfresco? [migrated]

  - by bluestella

  I am having a hard time looking for an answer to my question. I am trying to create a folder/space in Alfresco. But I don't have any idea doing it? Can someone help me with this? I'm using Java webscript. All I am at is this: package org.alfresco.module.demoscripts; import java.io.IOException; import org.alfresco.web.scripts.AbstractWebScript; import org.alfresco.web.scripts.WebScriptException; import org.alfresco.web.scripts.WebScriptRequest; import org.alfresco.web.scripts.WebScriptResponse; import org.json.JSONException; import org.json.JSONObject; public class SimpleWebScript extends AbstractWebScript { public void execute(WebScriptRequest req, WebScriptResponse res) throws IOException { try { // build a json object JSONObject obj = new JSONObject(); // put some data on it obj.put("field1", "data1"); // build a JSON string and send it back String jsonString = obj.toString(); res.getWriter().write(jsonString); } catch(JSONException e) { throw new WebScriptException("Unable to serialize JSON"); } } }

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• using Unity Android In a sub view and add actionbar and style

  - by aeroxr1

  I exported a simple animation from Unity3D (version 4.5) in android project. With eclipse I modified the manifest and added another activity. In this activity I put a button that it makes start the animation,and this is the result. The action bar appear in the main activity but it doesn't in the unity's activity :( How can I add the action bar and the style of the first activity to unity's animation activity ? This is the unity's activity's code : package com.rabidgremlin.tut.redcube; import android.app.NativeActivity; import android.content.res.Configuration; import android.graphics.PixelFormat; import android.os.Bundle; import android.view.KeyEvent; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import com.unity3d.player.UnityPlayer; public class UnityPlayerNativeActivity extends NativeActivity { protected UnityPlayer mUnityPlayer; // don't change the name of this variable; referenced from native code // Setup activity layout @Override protected void onCreate (Bundle savedInstanceState) { //requestWindowFeature(Window.FEATURE_NO_TITLE); super.onCreate(savedInstanceState); getWindow().takeSurface(null); //setTheme(android.R.style.Theme_NoTitleBar_Fullscreen); getWindow().setFormat(PixelFormat.RGB_565); mUnityPlayer = new UnityPlayer(this); /*if (mUnityPlayer.getSettings ().getBoolean ("hide_status_bar", true)) getWindow ().setFlags (WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); */ setContentView(mUnityPlayer); mUnityPlayer.requestFocus(); } // Quit Unity @Override protected void onDestroy () { mUnityPlayer.quit(); super.onDestroy(); } // Pause Unity @Override protected void onPause() { super.onPause(); mUnityPlayer.pause(); } // eliminiamo questa onResume() e proviamo a modificare la onResume() // Resume Unity @Override protected void onResume() { super.onResume(); mUnityPlayer.resume(); } // inseriamo qualche modifica qui // This ensures the layout will be correct. @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mUnityPlayer.configurationChanged(newConfig); } // Notify Unity of the focus change. @Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); mUnityPlayer.windowFocusChanged(hasFocus); } // For some reason the multiple keyevent type is not supported by the ndk. // Force event injection by overriding dispatchKeyEvent(). @Override public boolean dispatchKeyEvent(KeyEvent event) { if (event.getAction() == KeyEvent.ACTION_MULTIPLE) return mUnityPlayer.injectEvent(event); return super.dispatchKeyEvent(event); } // Pass any events not handled by (unfocused) views straight to UnityPlayer @Override public boolean onKeyUp(int keyCode, KeyEvent event) { return mUnityPlayer.injectEvent(event); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { return mUnityPlayer.injectEvent(event); } @Override public boolean onTouchEvent(MotionEvent event) { return mUnityPlayer.injectEvent(event); } /*API12*/ public boolean onGenericMotionEvent(MotionEvent event) { return mUnityPlayer.injectEvent(event); } } And this is the AndroidManifest.xml android:versionCode="1" android:versionName="1.0" > <!-- android:theme="@android:style/Theme.NoTitleBar"--> <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" android:xlargeScreens="true" /> <application android:icon="@drawable/app_icon" android:label="@string/app_name" android:theme="@android:style/Theme.Holo.Light" > <activity android:name="com.rabidgremlin.tut.redcube.UnityPlayerNativeActivity" android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|fontScale" android:label="@string/app_name" android:screenOrientation="portrait" > <!--android:launchMode="singleTask"--> <meta-data android:name="unityplayer.UnityActivity" android:value="true" /> <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik" android:value="false" /> </activity> <activity android:name="com.rabidgremlin.tut.redcube.MainActivity" android:label="@string/title_activity_main" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="17" android:targetSdkVersion="19" /> <uses-feature android:glEsVersion="0x00020000" /> </manifest>

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• Can't get LWJGL lighting to work

  - by Zarkonnen

  I'm trying to enable lighting in lwjgl according to the method described by NeHe and this post. However, no matter what I try, all faces of my shapes always receive the same amount of light, or, in the case of a spinning shape, the amount of lighting seems to oscillate. All faces are lit up by the same amount, which changes as the pyramid rotates. Concrete example (apologies for the length): Note how all panels are always the same brightness, but the brightness varies with the pyramid's rotation. This is using lwjgl 2.8.3 on Mac OS X. package com; import com.zarkonnen.lwjgltest.Main; import org.lwjgl.opengl.Display; import org.lwjgl.opengl.DisplayMode; import org.lwjgl.opengl.GL11; import org.newdawn.slick.opengl.Texture; import org.newdawn.slick.opengl.TextureLoader; import org.lwjgl.util.glu.*; import org.lwjgl.input.Keyboard; import java.nio.FloatBuffer; import java.nio.ByteBuffer; import java.nio.ByteOrder; /** * * @author penguin */ public class main { public static void main(String[] args) { try { Display.setDisplayMode(new DisplayMode(800, 600)); Display.setTitle("3D Pyramid"); Display.create(); } catch (Exception e) { } initGL(); float rtri = 0.0f; Texture texture = null; try { texture = TextureLoader.getTexture("png", Main.class.getResourceAsStream("tex.png")); } catch (Exception ex) { ex.printStackTrace(); } while (!Display.isCloseRequested()) { // Draw a Triangle :D GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT); GL11.glLoadIdentity(); GL11.glTranslatef(0.0f, 0.0f, -10.0f); GL11.glRotatef(rtri, 0.0f, 1.0f, 0.0f); texture.bind(); GL11.glBegin(GL11.GL_TRIANGLES); GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f(0.0f, 1.0f, 0.0f); GL11.glTexCoord2f(-1.0f, -1.0f); GL11.glVertex3f(-1.0f, -1.0f, 1.0f); GL11.glTexCoord2f(1.0f, -1.0f); GL11.glVertex3f(1.0f, -1.0f, 1.0f); GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f(0.0f, 1.0f, 0.0f); GL11.glTexCoord2f(-1.0f, -1.0f); GL11.glVertex3f(1.0f, -1.0f, 1.0f); GL11.glTexCoord2f(1.0f, -1.0f); GL11.glVertex3f(1.0f, -1.0f, -1.0f); GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f(0.0f, 1.0f, 0.0f); GL11.glTexCoord2f(-1.0f, -1.0f); GL11.glVertex3f(-1.0f, -1.0f, -1.0f); GL11.glTexCoord2f(1.0f, -1.0f); GL11.glVertex3f(1.0f, -1.0f, -1.0f); GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f(0.0f, 1.0f, 0.0f); GL11.glTexCoord2f(-1.0f, -1.0f); GL11.glVertex3f(-1.0f, -1.0f, -1.0f); GL11.glTexCoord2f(1.0f, -1.0f); GL11.glVertex3f(-1.0f, -1.0f, 1.0f); GL11.glEnd(); GL11.glBegin(GL11.GL_QUADS); GL11.glVertex3f(1.0f, -1.0f, 1.0f); GL11.glVertex3f(1.0f, -1.0f, -1.0f); GL11.glVertex3f(-1.0f, -1.0f, -1.0f); GL11.glVertex3f(-1.0f, -1.0f, 1.0f); GL11.glEnd(); Display.update(); rtri += 0.05f; // Exit-Key = ESC boolean exitPressed = Keyboard.isKeyDown(Keyboard.KEY_ESCAPE); if (exitPressed) { System.out.println("Escape was pressed!"); Display.destroy(); } } Display.destroy(); } private static void initGL() { GL11.glEnable(GL11.GL_LIGHTING); GL11.glMatrixMode(GL11.GL_PROJECTION); GL11.glLoadIdentity(); GLU.gluPerspective(45.0f, ((float) 800) / ((float) 600), 0.1f, 100.0f); GL11.glMatrixMode(GL11.GL_MODELVIEW); GL11.glLoadIdentity(); GL11.glEnable(GL11.GL_TEXTURE_2D); GL11.glShadeModel(GL11.GL_SMOOTH); GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); GL11.glClearDepth(1.0f); GL11.glEnable(GL11.GL_DEPTH_TEST); GL11.glDepthFunc(GL11.GL_LEQUAL); GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST); float lightAmbient[] = {0.5f, 0.5f, 0.5f, 1.0f}; // Ambient Light Values float lightDiffuse[] = {1.0f, 1.0f, 1.0f, 1.0f}; // Diffuse Light Values float lightPosition[] = {0.0f, 0.0f, 2.0f, 1.0f}; // Light Position ByteBuffer temp = ByteBuffer.allocateDirect(16); temp.order(ByteOrder.nativeOrder()); GL11.glLight(GL11.GL_LIGHT1, GL11.GL_AMBIENT, (FloatBuffer) temp.asFloatBuffer().put(lightAmbient).flip()); // Setup The Ambient Light GL11.glLight(GL11.GL_LIGHT1, GL11.GL_DIFFUSE, (FloatBuffer) temp.asFloatBuffer().put(lightDiffuse).flip()); // Setup The Diffuse Light GL11.glLight(GL11.GL_LIGHT1, GL11.GL_POSITION, (FloatBuffer) temp.asFloatBuffer().put(lightPosition).flip()); // Position The Light GL11.glEnable(GL11.GL_LIGHT1); // Enable Light One } }

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• Jframe using multiple classes?

  - by user2945880

  and im trying to make it so it can show multiple classes at once Jframe: import javax.swing.JFrame; import java.awt.BorderLayout; public class Concert { public static void main(String[] args) { JFrame frame = new JFrame(); frame.setSize(1000, 800); frame.setTitle("Concert!"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Concertbackground component = new Concertbackground(); BandComponent component1 = new BandComponent(); frame.add(component, BorderLayout.NORTH); frame.add(component1, BorderLayout.CENTER); frame.setVisible(true); } } These are the two classes mentioned in the Jframe: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Rectangle; import java.awt.geom.Ellipse2D; import java.awt.geom.Line2D; import javax.swing.JComponent; import java.awt.Polygon; /* BandComponent.java Justin Walker 10/27/13 */ public class BandComponent extends JComponent { public void paintComponent(Graphics g) { // Recover Graphics2D Graphics2D g2 = (Graphics2D) g; int xScale = 250; int yScale = 100; int x = 343; int y = 343; //singer Polygon sing = new Polygon(); sing.addPoint(667 ,208 + xScale); sing.addPoint(676,213 + xScale); sing.addPoint(678,217 + xScale); sing.addPoint(682,221 + xScale); sing.addPoint(681,224 + xScale); sing.addPoint(680,231 + xScale); sing.addPoint(676,242 + xScale); sing.addPoint(672,244 + xScale); sing.addPoint(672,250 + xScale); sing.addPoint(682,248 + xScale); sing.addPoint(713,244 + xScale); sing.addPoint(734,247 + xScale); sing.addPoint(750,247 + xScale); sing.addPoint(794,232 + xScale); sing.addPoint(800,231 + xScale); sing.addPoint(801,223 + xScale); sing.addPoint(807,219 + xScale); sing.addPoint(806,221 + xScale); sing.addPoint(806,229 + xScale); sing.addPoint(818,222 + xScale); sing.addPoint(820,223 + xScale); sing.addPoint(825,227 + xScale); sing.addPoint(825,240 + xScale); sing.addPoint(817,243 + xScale); sing.addPoint(807,245 + xScale); sing.addPoint(803,247 + xScale); sing.addPoint(801,252 + xScale); sing.addPoint(781,257 + xScale); sing.addPoint(762,264 + xScale); sing.addPoint(734,271 + xScale); sing.addPoint(701,286 + xScale); sing.addPoint(691,296 + xScale); sing.addPoint(693,311 + xScale); sing.addPoint(690,317 + xScale); sing.addPoint(690,335 + xScale); sing.addPoint(691,339 + xScale); sing.addPoint(689,343 + xScale); sing.addPoint(712,382 + xScale); sing.addPoint(725,400 + xScale); sing.addPoint(731,418 + xScale); sing.addPoint(731,428 + xScale); sing.addPoint(738,454 + xScale); sing.addPoint(741,460 + xScale); sing.addPoint(746,468 + xScale); sing.addPoint(766,468 + xScale); sing.addPoint(771,481 + xScale);// sing.addPoint(723,482 + xScale); sing.addPoint(720,462 + xScale); sing.addPoint(718,454 + xScale); sing.addPoint(709,436 + xScale); sing.addPoint(703,436 + xScale); sing.addPoint(699,417 + xScale); sing.addPoint(686,396 + xScale); sing.addPoint(678,395 + xScale); sing.addPoint(676,437 + xScale); sing.addPoint(673,439 + xScale); sing.addPoint(638,435 + xScale); sing.addPoint(640,398 + xScale); sing.addPoint(634,410 + xScale); sing.addPoint(625,416 + xScale); sing.addPoint(622,436 + xScale); sing.addPoint(622,443 + xScale); sing.addPoint(615,447 + xScale); sing.addPoint(609,456 + xScale); sing.addPoint(606,481 + xScale);// sing.addPoint(557,481 + xScale); sing.addPoint(560,467 + xScale); sing.addPoint(579,467 + xScale); sing.addPoint(587,464 + xScale); sing.addPoint(593,452 + xScale); sing.addPoint(594,441 + xScale); sing.addPoint(592,434 + xScale); sing.addPoint(600,416 + xScale); sing.addPoint(608,405 + xScale); sing.addPoint(609,394 + xScale); sing.addPoint(617,376 + xScale); sing.addPoint(619,363 + xScale); sing.addPoint(632,334 + xScale); sing.addPoint(637,324 + xScale); sing.addPoint(635,314 + xScale); sing.addPoint(639,296 + xScale); sing.addPoint(627,285 + xScale); sing.addPoint(600,279 + xScale); sing.addPoint(582,278 + xScale); sing.addPoint(575,275 + xScale); sing.addPoint(546,256 + xScale); sing.addPoint(536,252 + xScale); sing.addPoint(533,350 + xScale); sing.addPoint(534,361 + xScale); sing.addPoint(532,367 + xScale); sing.addPoint(529,369 + xScale); sing.addPoint(524,363 + xScale); sing.addPoint(525,355 + xScale); sing.addPoint(531,254 + xScale); sing.addPoint(527,249 + xScale); sing.addPoint(527,242 + xScale); sing.addPoint(529,237 + xScale); sing.addPoint(532,237 + xScale); sing.addPoint(536,178 + xScale); sing.addPoint(534,129 + xScale); sing.addPoint(535,123 + xScale); sing.addPoint(541,120 + xScale); sing.addPoint(545,123 + xScale); sing.addPoint(547,131 + xScale); sing.addPoint(545,173 + xScale); sing.addPoint(538,233 + xScale); sing.addPoint(549,239 + xScale); sing.addPoint(558,241 + xScale); sing.addPoint(585,257 + xScale); sing.addPoint(599,257 + xScale); sing.addPoint(627,254 + xScale); sing.addPoint(647,251 + xScale); sing.addPoint(653,248 + xScale); sing.addPoint(652,235 + xScale); sing.addPoint(648,226 + xScale); sing.addPoint(652,218 + xScale); sing.addPoint(661,212 + xScale); g2.setColor(Color.black); g2.fill(sing); g2.draw(sing); //guitar Polygon guitar = new Polygon(); guitar.addPoint(148,28); guitar.addPoint(158,32); guitar.addPoint(164,38); guitar.addPoint(168,46); guitar.addPoint(169,52); guitar.addPoint(167,60); guitar.addPoint(164,65); guitar.addPoint(165,70); guitar.addPoint(161,76); guitar.addPoint(158,92); guitar.addPoint(162,97); guitar.addPoint(161,102); guitar.addPoint(158,106); guitar.addPoint(155,108); guitar.addPoint(151,127); guitar.addPoint(152,133); guitar.addPoint(155,137); guitar.addPoint(151,146); guitar.addPoint(153,147); guitar.addPoint(160,142); guitar.addPoint(162,133); guitar.addPoint(162,123); guitar.addPoint(161,113); guitar.addPoint(162,110); guitar.addPoint(164,117); guitar.addPoint(169,131); guitar.addPoint(171,144); guitar.addPoint(170,159); guitar.addPoint(166,167); guitar.addPoint(166,171); guitar.addPoint(174,174); guitar.addPoint(183,184); guitar.addPoint(191,195); guitar.addPoint(196,198); guitar.addPoint(198,200); guitar.addPoint(199,210); guitar.addPoint(211,225); guitar.addPoint(212,233); guitar.addPoint(220,248); guitar.addPoint(233,260); guitar.addPoint(245,266); guitar.addPoint(248,268); guitar.addPoint(249,277); guitar.addPoint(205,275); guitar.addPoint(204,262); guitar.addPoint(187,238); guitar.addPoint(178,224); guitar.addPoint(177,216); guitar.addPoint(156,201); guitar.addPoint(146,197); guitar.addPoint(134,211); guitar.addPoint(128,229); guitar.addPoint(125,244);// guitar.addPoint(121,246); guitar.addPoint(107,248); guitar.addPoint(100,252); guitar.addPoint(97,258); guitar.addPoint(96,253); guitar.addPoint(89,258); guitar.addPoint(65,267); guitar.addPoint(63,274); guitar.addPoint(64,283); guitar.addPoint(41,282); guitar.addPoint(44,270); guitar.addPoint(47,264); guitar.addPoint(51,255); guitar.addPoint(73,238); guitar.addPoint(79,228); guitar.addPoint(97,222); guitar.addPoint(101,204); guitar.addPoint(102,181); guitar.addPoint(100,170); guitar.addPoint(95,161); guitar.addPoint(97,154); guitar.addPoint(91,152); guitar.addPoint(77,131); guitar.addPoint(65,123); guitar.addPoint(61,105); guitar.addPoint(64,94); guitar.addPoint(72,91); guitar.addPoint(78,82); guitar.addPoint(78,76); guitar.addPoint(70,73); guitar.addPoint(70,67); guitar.addPoint(93,51); guitar.addPoint(101,48); guitar.addPoint(111,52); guitar.addPoint(118,59); guitar.addPoint(119,70); guitar.addPoint(117,78); guitar.addPoint(113,79); guitar.addPoint(112,86); guitar.addPoint(111,88); guitar.addPoint(109,89); guitar.addPoint(109,92); guitar.addPoint(122,99);// guitar.addPoint(124,99); guitar.addPoint(133,96); guitar.addPoint(145,93); //guitar.addPoint(138,124); guitar.addPoint(150,69); guitar.addPoint(150,62); guitar.addPoint(155,58); guitar.addPoint(154,53); guitar.addPoint(149,50); guitar.addPoint(154,46); guitar.addPoint(153,38); guitar.addPoint(147,28); g2.setColor(Color.black); g2.fill(guitar); g2.draw(guitar); Polygon guitar2 = new Polygon (); guitar2.addPoint(141,108); guitar2.addPoint(139,126); guitar2.addPoint(135,122); guitar2.addPoint(128,122); guitar2.addPoint(129,116); guitar2.addPoint(143,108); g2.setColor(Color.white); g2.fill(guitar2); g2.draw(guitar2); //bass guitar Polygon bassgt = new Polygon (); bassgt.addPoint(871,21); bassgt.addPoint(879,24); bassgt.addPoint(885,32); bassgt.addPoint(886,42); bassgt.addPoint(895,47); bassgt.addPoint(904,56); bassgt.addPoint(907,69); bassgt.addPoint(909,83); bassgt.addPoint(910,91); bassgt.addPoint(941,81); bassgt.addPoint(946,75); bassgt.addPoint(945,67); bassgt.addPoint(950,67); bassgt.addPoint(955,75); bassgt.addPoint(960,68); bassgt.addPoint(963,74); bassgt.addPoint(967,72); bassgt.addPoint(971,66); bassgt.addPoint(973,70); bassgt.addPoint(981,67); bassgt.addPoint(984,71); bassgt.addPoint(982,76); bassgt.addPoint(987,80); bassgt.addPoint(986,82); bassgt.addPoint(980,83); bassgt.addPoint(979,90); bassgt.addPoint(974,85); bassgt.addPoint(970,86); bassgt.addPoint(973,91); bassgt.addPoint(965,86); bassgt.addPoint(960,90); bassgt.addPoint(961,100); bassgt.addPoint(955,92); bassgt.addPoint(944,91); bassgt.addPoint(907,103); bassgt.addPoint(906,109); bassgt.addPoint(893,114); bassgt.addPoint(895,123); bassgt.addPoint(900,131); bassgt.addPoint(904,134); bassgt.addPoint(908,145); bassgt.addPoint(911,159); bassgt.addPoint(918,171); bassgt.addPoint(919,190); bassgt.addPoint(923,198); bassgt.addPoint(919,201); bassgt.addPoint(919,210); bassgt.addPoint(927,220); bassgt.addPoint(942,226); bassgt.addPoint(944,234); bassgt.addPoint(909,230); bassgt.addPoint(905,214); bassgt.addPoint(899,204); bassgt.addPoint(893,203); bassgt.addPoint(889,171); bassgt.addPoint(877,151); bassgt.addPoint(861,152); bassgt.addPoint(852,169); bassgt.addPoint(849,203); bassgt.addPoint(841,210); bassgt.addPoint(840,228); bassgt.addPoint(828,233); bassgt.addPoint(806,235); bassgt.addPoint(805,228); bassgt.addPoint(822,219); bassgt.addPoint(824,204); bassgt.addPoint(817,201); bassgt.addPoint(822,196); bassgt.addPoint(822,184); bassgt.addPoint(828,162); bassgt.addPoint(829,152); bassgt.addPoint(820,149); bassgt.addPoint(811,144); bassgt.addPoint(806,134); bassgt.addPoint(805,117); bassgt.addPoint(820,107); bassgt.addPoint(819,89); bassgt.addPoint(811,83); bassgt.addPoint(811,77); bassgt.addPoint(824,66); bassgt.addPoint(825,61); bassgt.addPoint(842,53); bassgt.addPoint(852,43); bassgt.addPoint(853,29); bassgt.addPoint(870,20); g2.setColor(Color.black); g2.fill(bassgt); g2.draw(bassgt); Polygon bassgt2 = new Polygon(); bassgt2.addPoint(845,78); bassgt2.addPoint(845,98); bassgt2.addPoint(843,98); bassgt2.addPoint(842,105); bassgt2.addPoint(839,109); bassgt2.addPoint(834,103); bassgt2.addPoint(832,85); bassgt2.addPoint(845,78); g2.setColor(Color.white); g2.fill(bassgt2); g2.draw(bassgt2); Polygon drums = new Polygon (); drums.addPoint(713,104); drums.addPoint(706,121); drums.addPoint(721,377); drums.addPoint(248,380); drums.addPoint(253,228); drums.addPoint(250,206); drums.addPoint(237,178); drums.addPoint(206,166); drums.addPoint(201,154); drums.addPoint(198,152); drums.addPoint(208,148); drums.addPoint(236,150); drums.addPoint(247,130); drums.addPoint(227,119); drums.addPoint(219,105); drums.addPoint(222,96); drums.addPoint(233,88); drums.addPoint(251,84); drums.addPoint(272,83); drums.addPoint(300,91); drums.addPoint(285,72); drums.addPoint(294,57); drums.addPoint(319,46); drums.addPoint(372,45); drums.addPoint(406,50); drums.addPoint(428,65); drums.addPoint(433,74); drums.addPoint(450,58); drums.addPoint(478,48); drums.addPoint(514,48); drums.addPoint(544,51); drums.addPoint(566,52); drums.addPoint(577,67); drums.addPoint(575,79); drums.addPoint(561,95); drums.addPoint(545,98); drums.addPoint(525,105); drums.addPoint(524,147); drums.addPoint(524,183); drums.addPoint(645,175); drums.addPoint(662,143); drums.addPoint(617,152); drums.addPoint(608,148); drums.addPoint(614,139); drums.addPoint(633,128); drums.addPoint(661,116); drums.addPoint(659,107); drums.addPoint(625,114); drums.addPoint(592,113); drums.addPoint(571,111); drums.addPoint(565,102); drums.addPoint(576,86); drums.addPoint(616,70); drums.addPoint(647,66); drums.addPoint(679,67); drums.addPoint(695,72); drums.addPoint(699,90); drums.addPoint(678,100); drums.addPoint(667,103); drums.addPoint(672,113); drums.addPoint(689,105); drums.addPoint(709,106); g2.setColor(Color.black); g2.fill(drums); g2.draw(drums); } } The second class: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Rectangle; import java.awt.geom.Ellipse2D; import java.awt.geom.Line2D; import javax.swing.JComponent; import java.awt.GradientPaint; /* component that draws the concert background */ public class Concertbackground extends JComponent { public void paintComponent(Graphics g) { super.paintComponent(g); // Recover Graphics2D Graphics2D g2 = (Graphics2D) g; //Background Top g2.setColor(Color.BLUE); Rectangle backgroundTop = new Rectangle (0, 0, getWidth(), getHeight() / 4); g2.fill(backgroundTop); // Background bottom g2.setColor(Color.GREEN); Rectangle backgroundBottom = new Rectangle (0, getHeight() / 2, getWidth(), getHeight() / 2); g2.fill(backgroundBottom); // Speaker base g2.setColor(Color.BLACK); Rectangle base = new Rectangle (0, 0, 50, 100); g2.fill(base); // Speakers circles gray top g2.setColor(Color.DARK_GRAY); Ellipse2D.Double speakerTop = new Ellipse2D.Double(10, 10, 30, 30); g2.fill(speakerTop); //speakers circles black top g2.setColor(Color.BLACK); Ellipse2D.Double speakerTop1 = new Ellipse2D.Double(15, 15, 20, 20); g2.fill(speakerTop1); // Speakers circles gray bottom g2.setColor(Color.DARK_GRAY); Ellipse2D.Double speakerBottom = new Ellipse2D.Double(10, 50, 30, 30); g2.fill(speakerBottom); //speakers circles black bottom g2.setColor(Color.BLACK); Ellipse2D.Double speakerBottom1 = new Ellipse2D.Double(15, 55, 20, 20); g2.fill(speakerBottom1); } } My main question is how do I change my Jframe so it can use as many classes as I want, It cant be the size of my classes because they were used with the same 1000, 800 Jframe to make the classes. I also need to be able to add more than just these two classes to my Jframe.

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