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  • scala Slider throws casting exception

    - by coubeatczech
    hello, I create an Slider object: val slider = new Slider{ min = 0 max = 30 labels = Map(0 -> new Label("Nula"),15-> new Label("Pul"),30-> new Label("Max")) paintLabels = true } when I run this, an exception is thrown: scala.swing.Label cannot be cast to java.awt.Component but why? When i browse the docs, the excpected type for labels is a Map[Int,Label].

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  • Which is better: JNP or Corba?

    - by Juvinao
    Hello. I've try with EJB 3.0 and swing client and i've tried with glassfish and jboss as application server when i did use glassfish, the comunication is via corba. when i did use jboss, the comunication is via JNP. in my tests the JNP was faster than corba who has some like this?, and who could tell me which is better: JNP or Corba? and why? thanks

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  • Java app makes screen display unresponsive after 10 minutes of user idle time

    - by Ross
    I've written a Java app that allows users to script mouse/keyboard input (JMacro, link not important, only for the curious). I personally use the application to automate character actions in an online game overnight while I sleep. Unfortunately, I keep coming back to the computer in the morning to find it unresponsive. Upon further testing, I'm finding that my application causes the computer to become unresponsive after about 10 minutes of user idle time (even if the application itself it simulating user activity). I can't seem to pin-point the issue, so I'm hoping somebody else might have a suggestion of where to look or what might be causing the issue. The relevant symptoms and characteristics: Unresponsiveness occurs after user is idle for 10 minutes User can still move the mouse pointer around the screen Everything but the mouse appears frozen... mouse clicks have no effect and no applications update their displays, including the Windows 7 desktop I left the task manager up along the with the app overnight so I could see the last task manager image before the screen freezes... the Java app is at normal CPU/Memory usage and total CPU usage is only ~1% After moving the mouse (in other words, the user comes back from being idle), the screen image starts updating again within 30 minutes (this is very hit and miss... sometimes 10 minutes, sometimes no results after two hours) User can CTRL-ALT-DEL to get to Windows 7's CTRL-ALT-DEL screen (after a 30 second pause). User is still able to move mouse pointer, but clicking any of the button options causes the screen to appear to freeze again On some very rare occasions, the system never freezes, and I come back to it in the morning with full responsiveness The Java app automatically stops input scripting in the middle of the night, so Windows 7 detects "real" idleness and turns the monitors into Standby mode... which they successfully come out of upon manually moving the mouse in the morning when I wake up, even though the desktop display still appears frozen Given the symptoms and characteristics of the issue, it's as if the Java app is causing the desktop display of the logged in user to stop updating, including any running applications. Programming concepts and Java packages used: Multi-threading Standard out and err are rerouted to a javax.swing.JTextArea The application uses a Swing GUI awt.Robot (very heavily used) awt.PointerInfo awt.MouseInfo System Specs: Windows 7 Professional Java 1.6.0 u17 In conclusion, I should stress that I'm not looking for any specific solutions, as I'm not asking a very specific question. I'm just wondering if anybody has run into a similar problem when using the Java libraries that I'm using. I would also gladly appreciate any suggestions for things to try to attempt to further pinpoint what is causing my problem. Thanks! Ross PS, I'll post an update/answer if I manage to stumble across anything else while I continue to debug this.

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  • Create a rich text control field in VBA for Word 2010

    - by mkn
    I have a control field where I dynamically add certain text. That works well so far. The problem is that in one text I have an input field where the user can type in text. I need to hardcode the form text input field into the VBA code. How is this achieved? Or can someone point me in the right direction? In the following code snippet I need to replace the [InputField] by a VBA input field. ActiveDocument.SelectContentControlsByTitle("Bottom").Item(1).Range.Text = _ "Some Text" & vbNewLine & _ "Some Text" & vbNewLine & _ "Some Text" & vbNewLine & _ "Text [InputField] Text"

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  • coloring buttens

    - by asm_debuger
    i want to color the text inside the button how can i do that? i made that code: for(int i=0; i<10 ;i++) { arr[i]=new Button(""+i); arr[i]. arr[i].setBackground(Color.LIGHT_GRAY); p1.add(arr[i]); this.arr[i].addActionListener(this); } the buttens text color are colored in clack if i want to color the text in the button from black to blue what i need to write?

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  • How to fix the position of the button in applet

    - by user1609804
    I'm trying to make an applet that has a buttons in the right, where each button is corresponding to a certain pokemon. I already did it, but the buttons isn't fixed.they keep following the mouse. please help. This is my code: import javax.swing.*; import java.awt.image.BufferedImage; import java.io.*; import javax.imageio.ImageIO; import java.applet.*; import java.awt.event.*; import java.awt.*; public class choosePokemon extends Applet implements ActionListener { private int countPokemon; private int[] storePokemon; private int x,y; //this will be the x and y coordinate of the button BufferedImage Picture; public int getCountPokemon(){ //for other class that needs how many pokemon return countPokemon; } public int[] getStoredPokemon(){ //for other class that needs the pokemon return storePokemon; } public void init(){ x=0;y=0; try{ Picture = ImageIO.read(new File("pokeball.png")); } catch( IOException ex ){ } } public void paint( Graphics g ){ pokemon display = new pokemon(); // to access the pokemon attributes in class pokemon ButtonGroup group = new ButtonGroup(); //create a button group for( int a=0;a<16;a++ ){ // for loop in displaying the buttons of every pokemon(one pokemon, one button) display.choose( a ); //calls the method choose in which accepts an integer from 0-15 and saves the attributes of the pokemon corresponding to the integer JButton pokemonButton = new JButton( display.getName() ); // creates the button pokemonButton.setActionCommand( display.getName() ); // isasave sa actioncommand yung name ng kung ano mang pokemon pokemonButton.addActionListener(this); //isasama yung bagong gawang button sa listener para malaman kung na-click yung button pokemonButton.setBounds( x,y,50,23 ); group.add( pokemonButton ); //eto naman yung mag-aadd sa bagong gawang button sa isang group na puro buttons(button ng mga pokemon) y+=23; if( a==7 ){ x+=50; y=0; } add( pokemonButton ); //will add the button to the applet } g.drawImage( Picture, 120, 20, null ); } public void actionPerformed(ActionEvent e) { try{ //displays the picture of the selected pokemon Picture = ImageIO.read(new File( "pokemon/" + e.getActionCommand() + ".png" )); } catch( IOException ex ){ } } public boolean chosen( int PChoice ){ //this will check if the chosen pokemon is already the player's pokemon boolean flag = false; for( int x=0; x<countPokemon && !flag ;x++ ){ if( storePokemon[x]==PChoice ){ flag = true; } } return flag; }

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  • TextField Listener

    - by coubeatczech
    Hi, there's a swing JTextField, and I want to add a listener, so whenever the users types a single letter, there's an event. There's a ValueChanged event in scala api, but I don't get it what's it's peer. So which one Listener should I use? KeyListener and implement reasonably just one method?

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  • Dynamically refresh JTextArea as processing occurs?

    - by digiarnie
    I am trying to create a very simple Swing UI that logs information onto the screen via a JTextArea as processing occurs in the background. When the user clicks a button, I want each call to: textArea.append(someString + "\n"); to immediately show up in the UI. At the moment, the JTextArea does not show all log information until the processing has completed after clicking the button. How can I get it to refresh dynamically?

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  • Java - How to force resize JCheckBox to prevent clicking the empty space ?

    - by Brad
    When i create a JCheckBox in my Swing application i leave some extra space after its label, so if the JCheckBox label is for example 100 pixels width, i make the JCheckBox 120 pixels for safety. The problem as at runtime, it's not nice that a user can click on the empty space after the JCheckBox label and it can be actually clicked, like this : I wonder if there is a way to resize the JCheckBox at runtime to exactly fit the text inside it, depending on the font type/size used ? This seems fancy a bit, but i like to make things look perfect :)

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  • How to extract data from a text file

    - by šljaker
    I need to parse some large text file and extract Display name and area code only if it matches the following pattern: Line starts with display name (any number of words) Followed by 6 digits (can contain spaces) Followed by #text tag e.g. John doe 123 456 #text some text Display name: John doe Area code: 123 456 Test 123456 #text Display name: Test Area code: 123456 Test 123 #test Invalid, area code contains only 3 digits Test 123456 #test1 Invalid, contains invalid tag Test 123g45 #test Invalid, area code contains letters etc. I know how to open the text file and read it line by line, but having trouble with writing the regular expression. Any help would be greatly appreciated! edit: I have tried this: private static void Main(string[] args) { string text = "John Doe 123 45 #text Lorem ipsum dolor :)"; string pattern = @"(\w+)*([0-9]{2,5}).([0-9]{2,5}).#text"; Match match = Regex.Match(text, pattern, RegexOptions.IgnoreCase); if (match.Success) { string key = match.Groups[0].Value; Console.WriteLine(key); } }

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  • java AWT native OS library ?

    - by JavaUser
    Hi, As we know AWT classes uses native OS libraries for creating GUIs but Swing uses Java library itself for creating the GUI.Can anyone please give me an example of the Windows OS library corresponds to a AWT GUI ? Thx

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  • How to change the cursor blink color?

    - by Nitz
    I don't know this is possible or not? But i want to change the this cursor blink color...which is normally black.... i am making one java-swing based project and in that...one of the requirement is to change the color of the cursor blink.... Is this possible?

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  • How to rectify this program?

    - by user1430719
    This is a program to display a pie chart. I also have a button. But the program I have written, creates two separate frames and one frame is for the pie chart and the other is for the button. How do I put both button and pie chart on the same frame?? Can you please rectify my program. import java.awt.*; import org.jfree.chart.*; import org.jfree.chart.title.*; import org.jfree.data.general.DefaultPieDataset; import org.jfree.ui.*; import java.io.*; import javax.swing.*; import java.awt.event.*; import javax.swing.filechooser.*; public class Pie{ public static void getFile(File f) { System.out.println("File is: "+f.getName()); } public static void main(String[] args) { JPanel panel=new JPanel(); panel.setLayout(null); JButton b=new JButton("Open File"); b.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { JFileChooser chooser=new JFileChooser(); int ret = chooser.showDialog(null, "Open file"); if (ret == JFileChooser.APPROVE_OPTION) { File file = chooser.getSelectedFile(); getFile(file); } } } ); b.setBounds(50,40,100,35); panel.add(b); DefaultPieDataset pieDataset = new DefaultPieDataset(); pieDataset.setValue("A", new Integer(10)); pieDataset.setValue("B", new Integer(20)); pieDataset.setValue("C", new Integer(30)); pieDataset.setValue("D", new Integer(10)); pieDataset.setValue("E", new Integer(20)); pieDataset.setValue("F", new Integer(10)); JFreeChart chart = ChartFactory.createPieChart("Pie Chart using JFreeChart", pieDataset, true,true,true); ChartFrame frame1=new ChartFrame("Pie Chart",chart); frame1.add(panel); frame1.setVisible(true); frame1.setSize(600,600); } }

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  • Customizing jTable

    - by gmile
    I need to customize my jTable. All I need, is to put a custom Swing object (like jButon, jPanel, etc.) into the table cell. Is it possible? I'm trying: jTable.getModel.setValueAt(jPanel1,0,0) and jTable.getModel.setValueAt(jPanel1.getUI(),0,0) But the result is only a some kind of string, representing the object... Any ideas?

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  • how set vertical marquee in java application?

    - by Arivu2020
    Hi, I am creating one application in java using swing.In that i have an array of String, I try to use html marquee tag to scroll all the strings one by one from top to bottom.But the marquee tag doesn't support in the panel. How can i acheive it.Can any one suggest me? Thanks in advance

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  • Remember the values entered on standalone app on the client side

    - by kshtjsnghl
    We have a standalone java swing app, in which the user can print something that he drew, on a printer by giving its IP. Now the requirement is that the app needs to remember the ip that was given the last time by this user. What I could think of till now is (a brute one though) - keep a log file kind of storage on the client machine, and that everytime the app comes up it reads the last submitted one. Any suggestions would be helpful. Thanks in advance.

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  • How can I set an image for background of GUI interface?

    - by enriched
    hey everyone, im having some troubles displaying the background image for a GUI interface in java. Here is what i have at the moment, and with current stage of code it shows default(gray) background. import javax.swing.*; import java.awt.event.*; import java.util.Scanner; import java.awt.*; import java.io.File; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.IOException; ////////////////////////////////// // 3nriched Games Presents: // // MIPS The Mouse!! // ////////////////////////////////// public class mipsMouseGUI extends JFrame implements ActionListener { private static String ThePDub = ("mouse"); //the password JPasswordField pass; JPanel panel; JButton btnEnter; JLabel lblpdub; public mipsMouseGUI() { BufferedImage image = null; try { //attempts to read picture from the folder image = ImageIO.read(getClass().getResource("/mousepics/mousepic.png")); } catch (IOException e) { //catches exceptions e.printStackTrace(); } ImagePanel panel = new ImagePanel(new ImageIcon("/mousepics/neonglowOnwill.png").getImage()); setIconImage(image); //sets icon picture setTitle("Mips The Mouse Login"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); pass = new JPasswordField(5); //sets password length to 5 pass.setEchoChar('@'); //hide characters as @ symbol pass.addActionListener(this); //adds action listener add(panel); //adds panel to frame btnEnter = new JButton("Enter"); //creates a button btnEnter.addActionListener(this);// Register the action listener. lblpdub = new JLabel(" Your Password: "); // label that says enter password panel.add(lblpdub, BorderLayout.CENTER);// adds label and inputbox panel.add(pass, BorderLayout.CENTER); // to panel and sets location panel.add(btnEnter, BorderLayout.CENTER); //adds button to panel pack(); // packs controls and setLocationRelativeTo(null); // Implicit "this" if inside JFrame constructor. setVisible(true);// makes them visible (duh) } public void actionPerformed(ActionEvent a) { Object source = a.getSource(); //char array that holds password char[] passy = pass.getPassword(); //characters array to string String p = new String(passy); //determines if user entered correct password if(p.equals(ThePDub)) { JOptionPane.showMessageDialog(null, "Welcome beta user: USERNAME."); } else JOptionPane.showMessageDialog(null, "You have enter an incorrect password. Please try again."); } public class ImagePanel extends JPanel { private BufferedImage img; public ImagePanel(String img) { this(new ImageIcon(img).getImage()); } public ImagePanel(Image img) { Dimension size = new Dimension(img.getWidth(null), img.getHeight(null)); } public void paintComponent(Graphics g) { g.drawImage(img, 0, 0, null); } } }

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  • Disable JPanel with visual effect

    - by Ryan
    I'm looking for a good way to disable a JPanel. I'm using a MVC design for a Java Swing GUI. I want the JPanel to be disabled while the model is processing stuff. I've tried setEnabled(false). That disables user input on the JPanel, but I'd like it to be grayed out to add a more visual effect. Thanks in advance!

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  • How to create a database binding using Windows Builder Pro?

    - by Tiago
    For the first time, I'm creating a Java Swing application. I'm using Windows Builder Pro in Eclipse, and a MySQL database (already setup up). Let's say I have a combo box, and I want (for instance) all 'name' fields from a 'certain' table appear. How can I setup that binding? I know how to programatically handle the connection and query code, what I would like to know is how to make that binding in Eclipse.

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