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  • My image is not showing in java, using ImageIcon

    - by user1048606
    I'd like to know why my images are now showing up when I use ImageIcon and when I have specified the directory the image is in. All I get is a black blank screen with nothing else on it. import java.awt.Image; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; import java.awt.Image; import java.awt.event.KeyEvent; import java.util.ArrayList; import javax.swing.ImageIcon; // Class for handling key input public class Craft { private int dx; private int dy; private int x; private int y; private Image image; private Image image2; private ArrayList missiles; private final int CRAFT_SIZE = 20; private String craft = "C:\\Users\\Jimmy\\Desktop\\Jimmy's Folder\\programs\\craft.png"; public Craft() { ImageIcon ii = new ImageIcon(craft); image2 = ii.getImage(); missiles = new ArrayList(); x = 40; y = 60; } public void move() { x += dx; y += dy; } public int getX() { return x; } public int getY() { return y; } public Image getImage() { return image; } public ArrayList getMissiles() { return missiles; } public void keyPressed(KeyEvent e) { int key = e.getKeyCode(); // Shooting key if (key == KeyEvent.VK_SPACE) { fire(); } if (key == KeyEvent.VK_LEFT) { dx = -1; } if (key == KeyEvent.VK_RIGHT) { dx = 1; } if (key == KeyEvent.VK_UP) { dy = -1; } if (key == KeyEvent.VK_DOWN) { dy = 1; } } // Handles the missile object firing out of the ship public void fire() { missiles.add(new Missile(x + CRAFT_SIZE, y + CRAFT_SIZE/2)); } 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_UP) { dy = 0; } if (key == KeyEvent.VK_DOWN) { dy = 0; } } }

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  • PNGException "crc corruption" when attempting to create ImageIcon objects from ZIP archive

    - by Nathan Strong
    I've got a ZIP file containing a number of PNG images that I am trying to load into my Java application as ImageIcon resources directly from the archive. Here's my code: import java.io.*; import java.util.Enumeration; import java.util.zip.*; import javax.swing.ImageIcon; public class Test { public static void main( String[] args ) { if( args.length == 0 ) { System.out.println("usage: java Test.java file.zip"); return; } File archive = new File( args[0] ); if( !archive.exists() || !archive.canRead() ) { System.err.printf("Unable to find/access %s.\n", archive); return; } try { ZipFile zip = new ZipFile(archive); Enumeration <? extends ZipEntry>e = zip.entries(); while( e.hasMoreElements() ) { ZipEntry entry = (ZipEntry) e.nextElement(); int size = (int) entry.getSize(); int count = (size % 1024 == 0) ? size / 1024 : (size / 1024)+1; int offset = 0; int nread, toRead; byte[] buffer = new byte[size]; for( int i = 0; i < count; i++ ) { offset = 1024*i; toRead = (size-offset > 1024) ? 1024 : size-offset; nread = zip.getInputStream(entry).read(buffer, offset, toRead); } ImageIcon icon = new ImageIcon(buffer); // boom -- why? } zip.close(); } catch( IOException ex ) { System.err.println(ex.getMessage()); } } } The sizes reported by entry.getSize() match the uncompressed size of the PNG files, and I am able to read the data out of the archive without any exceptions, but the creation of the ImageIcon blows up. The stacktrace: sun.awt.image.PNGImageDecoder$PNGException: crc corruption at sun.awt.image.PNGImageDecoder.getChunk(PNGImageDecoder.java:699) at sun.awt.image.PNGImageDecoder.getData(PNGImageDecoder.java:707) at sun.awt.image.PNGImageDecoder.produceImage(PNGImageDecoder.java:234) at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:246) at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:172) at sun.awt.image.ImageFetcher.run(ImageFetcher.java:136) sun.awt.image.PNGImageDecoder$PNGException: crc corruption at sun.awt.image.PNGImageDecoder.getChunk(PNGImageDecoder.java:699) at sun.awt.image.PNGImageDecoder.getData(PNGImageDecoder.java:707) at sun.awt.image.PNGImageDecoder.produceImage(PNGImageDecoder.java:234) at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:246) at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:172) at sun.awt.image.ImageFetcher.run(ImageFetcher.java:136) Can anyone shed some light on it? Google hasn't turned up any useful information.

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  • Java: Reading images and displaying as an ImageIcon

    - by 11helen
    I'm writing an application which reads and displays images as ImageIcons (within a JLabel), the application needs to be able to support jpegs and bitmaps. For jpegs I find that passing the filename directly to the ImageIcon constructor works fine (even for displaying two large jpegs), however if I use ImageIO.read to get the image and then pass the image to the ImageIcon constructor, I get an OutOfMemoryError( Java Heap Space ) when the second image is read (using the same images as before). For bitmaps, if I try to read by passing the filename to ImageIcon, nothing is displayed, however by reading the image with ImageIO.read and then using this image in the ImageIcon constructor works fine. I understand from reading other forum posts that the reason that the two methods don't work the same for the different formats is down to java's compatability issues with bitmaps, however is there a way around my problem so that I can use the same method for both bitmaps and jpegs without an OutOfMemoryError? (I would like to avoid having to increase the heap size if possible!) The OutOfMemoryError is triggered by this line: img = getFileContentsAsImage(file); and the method definition is: public static BufferedImage getFileContentsAsImage(File file) throws FileNotFoundException { BufferedImage img = null; try { ImageIO.setUseCache(false); img = ImageIO.read(file); img.flush(); } catch (IOException ex) { //log error } return img; } The stack trace is: Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space at java.awt.image.DataBufferByte.<init>(DataBufferByte.java:58) at java.awt.image.ComponentSampleModel.createDataBuffer(ComponentSampleModel.java:397) at java.awt.image.Raster.createWritableRaster(Raster.java:938) at javax.imageio.ImageTypeSpecifier.createBufferedImage(ImageTypeSpecifier.java:1056) at javax.imageio.ImageReader.getDestination(ImageReader.java:2879) at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(JPEGImageReader.java:925) at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(JPEGImageReader.java:897) at javax.imageio.ImageIO.read(ImageIO.java:1422) at javax.imageio.ImageIO.read(ImageIO.java:1282) at framework.FileUtils.getFileContentsAsImage(FileUtils.java:33)

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  • Change size of ImageIcon in a JRadioButton

    - by Frederik Wordenskjold
    I simply want to change the size (diameter) of the actual (default) ImageIcon of my JRadioButton. I've changed the size of the font displayed in the widget, so it really looks silly with such a large radiobutton. JRadioButton button = new JRadioButton("Button"); button.setFont(new Font("Lucida Grande",Font.PLAIN, 11)); gives me this giant button: Do I really have to create my own ImageIcon? Or can I somehow scale the default one, without too much of a hassle?

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  • resizing a ImageIcon in a JButton

    - by Tony
    I am creating a JButton which includes a specific ImageIcon. The main issue is that the original icon size is much bigger than the button size. As result when the button is displayed, only part of the icon can be seen. What is the method that "resize" an ImageIcon i n order to make it fit inside a JButton?

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  • ImageIcon loads no image

    - by neville
    I'm trying to get image built from tiled set of images So to JPanel I'm adding JButtons with ImageIcons. All images are in folder with my classes (NetBeans), and they're named u1, u2, ..., u16. But on button there is no image shown. What am I doing wrong ? JPanel panel = new JPanel(new GridLayout(4, 4, 3, 3)); for (int i = 1; i < 17; i++) { JLabel l = new JLabel(new ImageIcon("u"+i+".jpg"), JLabel.CENTER); l.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED)); panel.add(l); }

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  • Image not loading onto JPanel?

    - by None None
    I have been trying to figure out how to add an image to a JPanel as a background, but still have complete control over the placing of JButtons, JLabels, and etc. This is one method I found, but it is crashing and not loading the image or buttons. Here is the code: import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JButton; import java.awt.BorderLayout; import java.awt.FlowLayout; import java.awt.GridLayout; public class PanelDemo extends JFrame { private static final long serialVersionUID = 1L; private JButton btn1 = new JButton("EASY"); private JButton btn2 = new JButton("MEDIUM"); private JButton btn3 = new JButton("HARD"); private JButton btn4 = new JButton("High Score"); public PanelDemo() { super("Image Panel Demo"); JPanel panel = new ImagePanel( new FlowLayout(FlowLayout.CENTER, 50, 180)); JPanel panelbtn = new JPanel(new GridLayout(4, 1)); btn1.setBackground(new java.awt.Color(0, 0, 0)); btn1.setFont(new java.awt.Font("Showcard Gothic", 1, 24)); btn1.setForeground(new java.awt.Color(0, 255, 102)); btn2.setBackground(new java.awt.Color(0, 0, 0)); btn2.setFont(new java.awt.Font("Showcard Gothic", 1, 24)); btn2.setForeground(new java.awt.Color(0, 255, 102)); btn3.setBackground(new java.awt.Color(0, 0, 0)); btn3.setFont(new java.awt.Font("Showcard Gothic", 1, 24)); btn3.setForeground(new java.awt.Color(0, 255, 102)); btn4.setBackground(new java.awt.Color(0, 0, 0)); btn4.setFont(new java.awt.Font("Showcard Gothic", 1, 24)); btn4.setForeground(new java.awt.Color(0, 255, 102)); panel.add(panelbtn); panelbtn.add(btn1); panelbtn.add(btn2); panelbtn.add(btn3); panelbtn.add(btn4); add(panel, BorderLayout.CENTER); setSize(640, 480); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } public static void main(String... args) { new PanelDemo().setVisible(true); } } ImagePanel.java import java.awt.Graphics; import java.awt.Image; import java.awt.LayoutManager; import javax.swing.ImageIcon; import javax.swing.JPanel; public class ImagePanel extends JPanel { private static final long serialVersionUID = 1L; String imageFile = "/rsc/img/background.jpg"; public ImagePanel() { super(); } public ImagePanel(String image) { super(); this.imageFile = image; } public ImagePanel(LayoutManager layout) { super(layout); } public void paintComponent(Graphics g) { ImageIcon imageicon = new ImageIcon(getClass().getResource(imageFile)); Image image = imageicon.getImage(); super.paintComponent(g); if (image != null) g.drawImage(image, 0, 0, getWidth(), getHeight(), this); } } Error: Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at javax.swing.ImageIcon.<init>(Unknown Source) at ImagePanel.paintComponent(ImagePanel.java:27) at javax.swing.JComponent.paint(Unknown Source) at javax.swing.JComponent.paintChildren(Unknown Source) at javax.swing.JComponent.paint(Unknown Source) at javax.swing.JComponent.paintChildren(Unknown Source) at javax.swing.JComponent.paint(Unknown Source) at javax.swing.JLayeredPane.paint(Unknown Source) at javax.swing.JComponent.paintChildren(Unknown Source) at javax.swing.JComponent.paintToOffscreen(Unknown Source) at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source) at javax.swing.RepaintManager$PaintManager.paint(Unknown Source) at javax.swing.RepaintManager.paint(Unknown Source) at javax.swing.JComponent.paint(Unknown Source) at java.awt.GraphicsCallback$PaintCallback.run(Unknown Source) at sun.awt.SunGraphicsCallback.runOneComponent(Unknown Source) at sun.awt.SunGraphicsCallback.runComponents(Unknown Source) at java.awt.Container.paint(Unknown Source) at java.awt.Window.paint(Unknown Source) at javax.swing.RepaintManager$3.run(Unknown Source) at javax.swing.RepaintManager$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source) at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source) at javax.swing.RepaintManager.prePaintDirtyRegions(Unknown Source) at javax.swing.RepaintManager.access$1000(Unknown Source) at javax.swing.RepaintManager$ProcessingRunnable.run(Unknown Source) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$200(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Also, if anyone knows of a better way to put a background image on a JPanel, pease do tell. Thank you in advance.

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  • chess board in java

    - by ranzy
    This is my code below import javax.swing.*; import java.awt.*; public class board2 { JFrame frame; JPanel squares[][] = new JPanel[8][8]; public board2() { frame = new JFrame("Simplified Chess"); frame.setSize(500, 500); frame.setLayout(new GridLayout(8, 8)); for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { squares[i][j] = new JPanel(); if ((i + j) % 2 == 0) { squares[i][j].setBackground(Color.black); } else { squares[i][j].setBackground(Color.white); } frame.add(squares[i][j]); } } squares[0][0].add(new JLabel(new ImageIcon("rookgreen.png"))); squares[0][2].add(new JLabel(new ImageIcon("bishopgreen.png"))); squares[0][4].add(new JLabel(new ImageIcon("kinggreen.png"))); squares[0][5].add(new JLabel(new ImageIcon("bishopgreen.png"))); squares[0][7].add(new JLabel(new ImageIcon("rookgreen.png"))); squares[7][0].add(new JLabel(new ImageIcon("rookred.png"))); squares[7][2].add(new JLabel(new ImageIcon("bishopred.png"))); squares[7][4].add(new JLabel(new ImageIcon("kingred.png"))); squares[7][5].add(new JLabel(new ImageIcon("bishopred.png"))); squares[7][7].add(new JLabel(new ImageIcon("rookred.png"))); for (int i = 0; i < 8; i++) { squares[1][i].add(new JLabel(new ImageIcon("pawngreen.png"))); squares[6][i].add(new JLabel(new ImageIcon("pawnred.png"))); } frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } public static void main(String[] args) { new board2(); } } I am trying to create a chess game sort of and I need help with putting labels on all sides of the board to label the rows and columns in either A-H or 1-8. I have no idea how to do it. Also later on I'll be adding a feature to drag and drop the pieces. Is it best to use JLabels? Anyways I would I go about putting the labels on the side? Thanks!

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  • How to place images on top of each other in java

    - by Haxed
    Hi, I have a background image of a road, which I have displayed on a JFrame using an ImageIcon. I want to put a car on top of that background image at a certain (x,y) location. I tried using another ImageIcon and the background does not appear when I run the program , however the car does. import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; public class Gui extends JFrame { private ImageIcon northcar = new ImageIcon("src/north.gif"); private ImageIcon usIcon = new ImageIcon("src/trafficLight.jpg"); public Gui() { add(new JLabel(usIcon)); // background image does not appear after the i added the northcar label add(new JLabel(northcar)); // this picture can be seen } public static void main(String[] args) { Gui frame = new Gui(); frame.setTitle("TestImageIcon"); frame.setLocationRelativeTo(null); // Center the frame frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setBounds(0, 0, 650, 650); frame.setVisible(true); } } I heard about using a canvas but have no clue. Any ideas ? Many Thanks

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  • Background image in a JFrame.

    - by thepandaatemyface
    Hi, This question has been asked a lot but everywhere the answers fall short. I can get a JFrame to display a background image just fine by extending JPanel and overriding paintComponent, like so: class BackgroundPanel extends JPanel { private ImageIcon imageIcon; public BackgroundPanel() { this.imageIcon = Icons.getIcon("foo"); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); g.drawImage(imageIcon.getImage(), 0,0,imageIcon.getIconWidth(),imageIcon.getIconHeight(),this); } } But now, how do you add a component on top of that background? When I go JFrame w = new JFrame() ; Container cp = w.getContentPane(); cp.setLayout(null); BackgroundPanel bg = new BackgroundPanel(); cp.add(bg); JPanel b = new JPanel(); b.setSize(new Dimension(30, 40)); b.setBackground(Color.red); cp.add(b); w.pack() w.setVisible(true) It shows the little red square (or any other component) and not the background, but when I remove cp.setLayout(null);, the background shows up but not my other component. I'm guessing this has something to do with the paintComponent not being called by the null LayoutManager, but I'm not at all familiar with how LayoutManagers work (this is a project for college and the assignment specifically says not to use a LayoutManager) When i make the image the background has to display null (and so, transparant (??)) the red square shows up so it might be that the background is actually above my other components) Does anyone anyone have any ideas? Thanks

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  • java, swing, Gridlayout problem

    - by josh
    I have a panel with GridLayout But when I'm trying to run the program, only the first button out of 100 is shown. Futhermore, the rest appear only when I move the cursor over them. What's wrong with it? Here's the whole class(Life.CELLS=10 and CellButton is a class which extends JButton) public class MainLayout extends JFrame { public MainLayout() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(650, 750); setLayout(new FlowLayout()); //setResizable(false); final JPanel gridPanel = new JPanel(new GridLayout(Life.CELLS, Life.CELLS)); for (int i=0; i<Life.CELLS; i++) { for (int j=0; j<Life.CELLS; j++) { CellButton jb = new CellButton(i, j); jb.setPreferredSize(new Dimension(jb.getIcon().getIconHeight(), jb.getIcon().getIconWidth())); buttons[i][j] = jb; grid[i][j] = false; gridPanel.add(jb); } } add(gridPanel); } } This is code of CellButton package classes; import javax.swing.JButton; import javax.swing.ImageIcon; import javax.swing.JFrame; public class CellButton extends JButton { private int x; private int y; boolean alive; ImageIcon icon; boolean next; // icons for grids final ImageIcon dead = new ImageIcon(JFrame.class.getResource("/images/image1.gif")); final ImageIcon live = new ImageIcon(JFrame.class.getResource("/images/image2.gif")); public CellButton(int X, int Y) { super(); x = X; y = Y; alive = false; icon = dead; setIcon(icon); } public int getX() { return x; } public int getY() { return y; } public boolean isAlive() { return alive; } public void relive() { alive = true; icon = live; setIcon(icon); } public void die() { alive = false; icon = dead; setIcon(icon); } public void setNext(boolean n) { next = n; } public boolean getNext() { return next; } public ImageIcon getIcon() { return icon; } }

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  • How to change the value of a JLabel in runtime?

    - by user365465
    I want to change the image a JLabel is viewing during runtime, but I keep getting NullPointerExceptions or nothing happens when I press the magic button that's supposed to do things. Is it even possible in Java? Here is my code in its entirety: import java.text.*; import javax.swing.text.*; import java.util.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class Shell implements ActionListener, MenuKeyListener { JFrame frame; JWindow window; JButton PSubmit; JPanel pane1, pane2; JRadioButton R1, R2, R3; ButtonGroup PGroup; JTabbedPane layout; String result; String border = "Border.png"; String DF = "Frame.png"; String list []; Driver driver; public Shell() { driver = new Driver(); list = new String [6]; } public void setFrame() { frame = new JFrame("Pokemon Program 3 by Systems Ready"); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); frame.getContentPane().setLayout(new BorderLayout()); } public void frameLayout() { layout = new JTabbedPane(); JPanel pane1 = new JPanel(); JPanel pane2 = new JPanel(); JLabel label = new JLabel("Please choose the restrictions:"); JLabel imgLabel1 = new JLabel(new ImageIcon(border)); JLabel notiLabel1 = new JLabel("The Pokemon chosen with these restrictions are: "); JLabel notiLabel2 = new JLabel("'No Restrictions': No restrictions for the kind of Pokemon chosen based on species or items."); JLabel notiLabel3 = new JLabel("'Battle Revolution': All Pokemon must have unique items."); JLabel notiLabel4 = new JLabel("'Battle Tower': All Pokemon must have unique items, Uber and Event Legendaries banned."); JLabel label2 = new JLabel("Please choose possible Pokemon:"); pane1.add(label); pearlButtons(); pane1.add(R1); pane1.add(R2); pane1.add(R3); pane1.add(PSubmit); pane1.add(notiLabel2); pane1.add(notiLabel3); pane1.add(notiLabel4); pane1.add(imgLabel1); pane1.add(notiLabel1); JLabel pokeLabel1 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel2 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel3 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel4 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel5 = new JLabel(new ImageIcon(DF)); JLabel pokeLabel6 = new JLabel(new ImageIcon(DF)); pane1.add(pokeLabel1); pane1.add(pokeLabel2); pane1.add(pokeLabel3); pane1.add(pokeLabel4); pane1.add(pokeLabel5); pane1.add(pokeLabel6); pane2.add(label2); layout.add("Pearl Version", pane1); layout.add("SoulSilver Version", pane2); frame.add(layout); } public void pearlButtons() { PGroup = new ButtonGroup(); R1 = new JRadioButton("No Restrictions", true); R1.setActionCommand("N"); R1.setVisible(true); R2 = new JRadioButton("Battle Revolution"); R2.setActionCommand("BR"); R2.setVisible(true); R3 = new JRadioButton("Battle Tower"); R3.setActionCommand("B"); R3.setVisible(true); PGroup.add(R1); PGroup.add(R2); PGroup.add(R3); PSubmit = new JButton("Submit"); PSubmit.setActionCommand("pstart"); PSubmit.setVisible(true); PSubmit.addActionListener(this); } public void pearlProcessing() { //The "list" array has a bunch of string names that get .png affixed to them (and I named the image files as such when I name them) String file1 = list[0] + ".png"; String file2 = list[1] + ".png"; String file3 = list[2] + ".png"; String file4 = list[3] + ".png"; String file5 = list[4] + ".png"; String file6 = list[5] + ".png"; /*-------------------------------------------------------------------------------// This is where the method's supposed to go to change the image... I've tried pokeLabel = new JLabel(new ImageIcon(file1));, but that yields a NullPointerException. //-----------------------------------------------------------------------------------*/ } public static void main(String[] args) { Shell test = new Shell(); test.setFrame(); test.frameLayout(); test.frame.setVisible(true); } public void actionPerformed(ActionEvent e) { if ("pstart".equals(e.getActionCommand())) { result = PGroup.getSelection().getActionCommand(); if (result.equals("N")) { list = driver.Prandom(); pearlProcessing(); } else System.out.println("Not done yet! ;)"); } } public void menuKeyPressed(MenuKeyEvent e) { System.out.println("pressed"); } public void menuKeyReleased(MenuKeyEvent e) { System.out.println("menuKeyReleased"); } public void menuKeyTyped(MenuKeyEvent e) { System.out.println("menuKeyTyped"); } }

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  • Netbeans jar file icon problems

    - by Erma
    I finally found how to make an exe project in Netbeans, so a jar file and execute it from the DESKTOP. The only problem I have ocurred is that after I open the jar file and login with my username and password the button icons are not shown, if I put a string it appears but if I put the image it doesn't appear. So,I had to restore this code: JButton btnNew = new JButton(new ImageIcon("new.gif")); JButton btnUpdate = new JButton(new ImageIcon("NotePad.gif")); JButton btnDelete = new JButton(new ImageIcon("delete.gif")); JButton btnSearch = new JButton(new ImageIcon("find.gif")); and put this one: JButton btnNew = new JButton("ADD"); JButton btnUpdate = new JButton("Update"); JButton btnDelete = new JButton("Delete"); JButton btnSearch = new JButton("Search"); It now works but I would like to have the icons please. Any idea?

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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 can I get an image too big from a server?

    - by Daniel Calderon Mori
    I'm currenty developing for blackberry and just bumped into this problem as i was trying to download an image from a server. The servlet which the device communicates with is working correctly, as I have made a number of tests for it. But it gives me the 413 HTTP error ("Request entity too large"). I figure i will just get the bytes, uhm, portion by portion. How can i accomplish this? This is the code of the servlet (the doGet() method): try { ImageIcon imageIcon = new ImageIcon("c:\\Users\\dcalderon\\prueba.png"); Image image = imageIcon.getImage(); PngEncoder pngEncoder = new PngEncoder(image, true); output.write(pngEncoder.pngEncode()); } finally { output.close(); } Thanks. It's worth mentioning that I am developing both the client-side and the server-side.

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  • Error Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException [migrated]

    - by user134212
    I'm new here. I'm learning how to program on java and I have a problem with my code. I really have no clue why my code is not working. I think my mistake may be here, but I'm not quite sure. m3 = new Matriz(ren2,col2); btSumar.addActionListener(new ActionListener() { Matriz m3;//(ren2,col2); public void actionPerformed(ActionEvent e) { m3 = new Matriz(ren2,col2); if(ventanaAbierta==true) { try { crearMat.SUMA(m1,m2); } catch(Exception nul) { System.out.println(nul); } } else { JOptionPane.showMessageDialog(null,"Ya se realizo la suma"); } } }); My Complete code import java.awt.*; import javax.swing.*; import javax.swing.BorderFactory; import javax.swing.border.Border; import java.awt.event.*; import java.awt.*; import java.io.*; import java.util.*; public class Practica2 { private int opcion,ren2,col2; private JFrame ventana,ventanaPrintMatriz; private JPanel panel,panel2; private Border borderRed2,borderBlue2,borderGreen2,borderGreen4; private Color red,green,blue,white,black; private Font Verdana14,ArialBlack18; private JLabel labelTitulo; public JButton btSalir,btSumar,btRestar,btMultiplica,btTranspuesta,btCrear; private ImageIcon suma,resta,multi,crear,salir,trans; private boolean ventanaAbierta = false; private static ValidacionesMatrices valida; private static Operaciones operacion; private static Matriz m1,m2,m3; private static ImprimirMatriz printMat; public Practica2() { panel = new JPanel(); panel.setLayout(null); ventana = new JFrame("Operaciones con Matrices"); ventana.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); ventana.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { //Sale del programa System.exit(0); } }); ventana.setContentPane(panel); ventana.setVisible(true); ventana.setResizable(false); ventana.setBounds(150,150,300,380); //ventana.setBounds(0,0,650,650); } public void inicializarComponentes() { panel2 = new JPanel(); panel2.setLayout(null); labelTitulo = new JLabel("Practica #2"); suma = new ImageIcon("suma1.png"); resta = new ImageIcon("resta1.png"); multi = new ImageIcon("multi1.png"); trans = new ImageIcon("trans2.png"); crear = new ImageIcon("crear1.png"); salir = new ImageIcon("salir1.png"); btTranspuesta = new JButton("Transpuesta",trans); btMultiplica = new JButton("Multiplica",multi); btRestar = new JButton("Restar",resta); btSumar = new JButton("Sumar",suma); btCrear = new JButton("Crear",crear); btSalir = new JButton("Salir",salir); //Tipo de letra ArialBlack18 = new Font("Arial Black",Font.BOLD,18); //Color green = new Color(0,255,0); //Formato labelTitulo labelTitulo.setBounds(80,-60,200,150); labelTitulo.setFont(ArialBlack18); labelTitulo.setForeground(blue); labelTitulo.setVisible(true); //Formato de CrearMatriz btCrear.setBounds(80,50,130,30); btCrear.setToolTipText("Crea una matriz"); //Formato de Muliplica btMultiplica.setBounds(80,100,130,30); btMultiplica.setToolTipText("Mat[A] * Mat[B]"); //Formato de botonRestar btRestar.setBounds(80,150,130,30); btRestar.setToolTipText("Mat[A] - Mat[B]"); //Formato del botonSumar btSumar.setBounds(80,200,130,30); btSumar.setToolTipText("Mat[A] + Mat[B]"); //Formato de Transpuesta btTranspuesta.setBounds(80,250,130,30); btTranspuesta.setToolTipText("Mat[A]^-1"); //Formato del botonSalir btSalir.setBounds(80,300,130,30); //Agregando componentes al panel1 panel2.add(labelTitulo); panel2.add(btMultiplica); panel2.add(btCrear); panel2.add(btRestar); panel2.add(btSumar); panel2.add(btSalir); panel2.add(btTranspuesta); //Formato panel2 panel2.setBackground(green); panel2.setVisible(true); panel2.setBounds(0,0,300,380); //Argregamos componentes al panelPrincipal= panel.add(panel2); //BotonCrear btCrear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) //throws IOException { if(ventanaAbierta==false) { ventanaAbierta=true; new CrearMatriz(); } else { JOptionPane.showMessageDialog(null,"Ya se crearon las Matrices"); } } }); m3 = new Matriz(ren2,col2); btSumar.addActionListener(new ActionListener() { Matriz m3;//(ren2,col2); public void actionPerformed(ActionEvent e) { m3 = new Matriz(ren2,col2); if(ventanaAbierta==true) { try { crearMat.SUMA(m1,m2); } catch(Exception nul) { System.out.println(nul); } } else { JOptionPane.showMessageDialog(null,"Ya se realizo la suma"); } } }); //BotonSalir btSalir.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.exit(0); } }); panel.setVisible(true); panel.setBounds(0,0,350,380); } class VentanaMatriz { private JFrame ventana; private JPanel panel; private JTextArea textArea1,textArea2; private JLabel mat1,mat2; private JTextField textField1; public VentanaMatriz() { panel = new JPanel(); panel.setLayout(null); ventana = new JFrame("Creacion de Matrices"); ventana.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { ventana.dispose(); } }); ventana.setContentPane(panel); ventana.setVisible(true); ventana.setResizable(false); ventana.setBounds(200,100,850,420); } public void inicializarComponentes() { //Colores black = new Color(0,0,0); white = new Color(255,255,255); blue = new Color(0,0,255); green = new Color(0,255,0); red = new Color(255,0,0); //Tipo de letra Verdana14 = new Font("Verdana",Font.BOLD,14); //Tipos de borde borderRed2 = BorderFactory.createLineBorder(red,2); borderBlue2 = BorderFactory.createLineBorder(blue,2); borderGreen2 = BorderFactory.createLineBorder(green,2); borderGreen4 = BorderFactory.createLineBorder(green,4); //Agregando componentes al panel1 panel.add(mat1); panel.add(textArea1); panel.add(mat2); panel.add(textArea2); //Formato panel2 panel.setBackground(blue); panel.setVisible(true); panel.setBounds(0,0,850,420); } } class CrearMatriz { public int col1,re1,ren2,col2; public Matriz m1,m2,m3; public CrearMatriz() { int col1,ren1,ren2,col2; ren2 = Integer.parseInt(JOptionPane.showInputDialog("Numero de Renglones Matriz A: ")); col2 = Integer.parseInt(JOptionPane.showInputDialog("Numero de Columnas Matriz A: ")); final Matriz m1= new Matriz(ren2,col2); ren2 = Integer.parseInt(JOptionPane.showInputDialog("Numero de Renglones Matriz B: ")); col2 = Integer.parseInt(JOptionPane.showInputDialog("Numero de Columnas Matriz B: ")); final Matriz m2= new Matriz(ren2,col2); m3 = new Matriz(ren2,col2); m1.llenarMatriz(); m2.llenarMatriz(); m1.printMat(); m2.printMat(); } public void SUMA(Matriz m1,Matriz m2) { Matriz m3; if(ventanaAbierta==false) { m3 = new Matriz(ren2,col2); if(valida.validaSumayResta(m1,m2)) { m3 = operacion.sumaMat(m1,m2); JOptionPane.showMessageDialog(null,"La suma es = "); m3.imprimeMatriz(); } else { JOptionPane.showMessageDialog(null,"No es posible hacer la suma"); } } } public void RESTA() { } //btSumar = new JButton("Sumar",suma); //BotonSumar //Mostrar matriz 1 y 2 // System.out.println("\n\n\nMatriz 1="); // m1.imprimeMatriz(); // System.out.println("\nMatriz 2="); //Poner en botones /* if(valida.validaSumayResta(m1,m2)) { m3 = operacion.sumaMat(m1,m2); JOptionPane.showMessageDialog(null,"La suma es = "); m3.imprimeMatriz(); } else { JOptionPane.showMessageDialog(null,"No es posible hacer la suma"); } if(valida.validaSumayResta(m1,m2)) { m3=operacion.restaMat(m1,m2); JOptionPane.showMessageDialog(null,"La resta es = "); m3.imprimeMatriz(); } else { JOptionPane.showMessageDialog(null,"No es posible hacer la resta"); } if(valida.validaMultiplicacion(m1,m2)){ m3=operacion.multiplicaMat(m1,m2); JOptionPane.showMessageDialog(null,"La multiplicacion es = "); m3.imprimeMatriz(); } else { JOptionPane.showMessageDialog(null,"No es posible hacer la multiplicacion"); } JOptionPane.showMessageDialog(null,"La multiplicacion es = "); m1=operacion.transpuesta(m1); m2=operacion.transpuesta(m2); */ } class Matriz { public JTextField matriz; //public JTextArea texto; private JFrame ventanaPrintMatriz; private JPanel panel2; int ren; int col; int pos[][]; public Matriz(int ren1, int col1) { ren = ren1; col = col1; pos = new int [ren][col];/*una matriz de enteros de renglon por columan*/ } public void llenarMatriz() { for(int i=0;i<ren;i++) for(int j=0;j<col;j++) pos[i][j]=(int) (Math.random()*10);/*la posicion i y j crea un entero random*/ } /*vuelve a recorrer los espacio de i y j*/ } //Esta clase era un metodo de CrearMatriz class ImprimirMatriz { public void ImprimirMatriz() { panel2 = new JPanel(); panel2.setLayout(null); ventanaPrintMatriz = new JFrame("Matriz"); ventana.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { //Practica2.ventanaAbierta=false; ventana.dispose(); } }); int i,j; int x=0,y=0; borderRed2 = BorderFactory.createLineBorder(red,2); white = new Color(255,255,255); red = new Color(255,0,0); black = new Color(0,0,0); blue = new Color(0,0,255); for(i=0;i<ren;i++) { for(j=0;j<col;j++) { matriz = new JTextField(" "+pos[i][j]); matriz.setBorder(borderRed2); matriz.setForeground(white); matriz.setBounds(x+25,y+25,25,25); matriz.setBackground(black); matriz.setEditable(false); matriz.setVisible(true); //Se incrementa la coordenada en X //para el siguiente Textfield no se encime x=x+35; //Agregamos el textField al panel panel2.add(matriz); } //Regreso las cordenadas de X a 0 para que el //siguiente renglon empieze en donde mismo x=0; //Incremento las coordenada Y para que se brinque //de linea y=y+35; } //Formato panel2 panel2.setBounds(150,150,350,380); panel2.setBackground(blue); //panel2.setEditable(false); panel2.setVisible(true); //Formato de Ventana ventanaPrintMatriz.setContentPane(panel2); ventanaPrintMatriz.setBounds(150,150,350,380); ventanaPrintMatriz.setResizable(false); ventanaPrintMatriz.setVisible(true); } } class Operaciones { public Matriz sumaMat(Matriz m1, Matriz m2) { Matriz m3; m3 = new Matriz(m1.ren, m1.col); for(int i=0;i<m1.col;i++) for(int j=0;j<m1.ren;j++) m3.pos[i][j]=m1.pos[i][j]+m2.pos[i][j]; return m3; } public Matriz restaMat(Matriz m1, Matriz m2) { Matriz m3; m3 = new Matriz(m1.ren, m1.col); for(int i=0;i<m1.col;i++) for(int j=0;j<m1.ren;j++) m3.pos[i][j]=m1.pos[i][j]-m2.pos[i][j]; return m3; } public Matriz multiplicaMat(Matriz m1, Matriz m2) { Matriz m3; m3 = new Matriz(m1.ren, m2.col); for(int i=0;i<m1.ren;i++) for(int j=0;j<m2.col;j++) { m3.pos[i][j]=0; for(int k=0;k<m1.col;k++) m3.pos[i][j]+=(m1.pos[i][k]*m2.pos[k][j]); } return m3; } public Matriz transpuesta(Matriz m1) { Matriz m3=new Matriz(m1.col,m1.ren); for(int i=0;i<m1.col;i++) for(int j=0;j<m1.ren;j++) m3.pos[i][j]=m1.pos[j][i]; return m3; } } class ValidacionesMatrices { public boolean validaSumayResta(Matriz m1, Matriz m2) { if((m1.ren==m2.ren) && (m1.col==m2.col)) return true; else return false; } public boolean validaMultiplicacion(Matriz m1, Matriz m2) { if(((m1.ren==m2.ren) && (m1.col==m2.col)) || (m1.col==m2.ren)) return true; else return false; } } public static void main(String[] args) { Practica2 practica2 = new Practica2(); practica2.inicializarComponentes(); } } Exc

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  • 2d java Graphics

    - by LukeG
    I am new to java 2d graphics and I have problem handling mouseclick event. Is it possible for you to tell me why there is nothing going on after updating mouse status to clicked ? What I want to do is to change the image in array at 0 2 to another image. Nothing happens tho. Thanks for your help in advance. import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.event.*; import java.awt.*; import javax.swing.ImageIcon; import javax.swing.*; public class Board extends JPanel implements MouseListener { private static boolean[] keyboardState = new boolean[525]; private static boolean[] mouseState = new boolean[3]; private static Image[][] images; Image house; int w = 0; int h = 0; int xPos; int yPos; ImageIcon ii = new ImageIcon(this.getClass().getResource("house.gif")); ImageIcon iii = new ImageIcon(this.getClass().getResource("house1.gif")); public Board() { house = ii.getImage(); h = house.getHeight(null); w = house.getWidth(null); images = new Image[10][10]; for(int i = 0; i < 10; i++) { for(int j = 0; j < 10; j++) { images[i][j] = house; } } } public void paint(Graphics g) { Graphics2D g2d = (Graphics2D) g; for(int i = 0; i < 10; i++) { for(int j = 0; j < 10; j++) { g2d.drawImage(images[i][j],w*i,h*j,null); } } //g2d.drawImage(house,15,15,null); } public void checkMouse() { if(mouseState[0]) { images[0][2] = iii.getImage(); repaint(); super.repaint(); } } @Override public void mousePressed(MouseEvent e) { mouseKeyStatus(e, true); checkMouse(); } @Override public void mouseReleased(MouseEvent e) { mouseKeyStatus(e, false); repaint(); } public static boolean mouseButtonState(int button) { return mouseState[button - 1]; } private void mouseKeyStatus(MouseEvent e, boolean status) { if(e.getButton() == MouseEvent.BUTTON1) mouseState[0] = status; else if(e.getButton() == MouseEvent.BUTTON2) mouseState[1] = status; else if(e.getButton() == MouseEvent.BUTTON3) mouseState[2] = status; }

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  • How do I get my character to move after adding to JFrame?

    - by A.K.
    So this is kind of a follow up on my other JPanel question that got resolved by playing around with the Layout... Now my MouseListener allows me to add a new Board(); object from its class, which is the actual game map and animator itself. But since my Board() takes Key Events from a Player Object inside the Board Class, I'm not sure if they are being started. Here's my Frame Class, where SideScroller S is the player object: package OurPackage; //Made By A.K. 5/24/12 //Contains Frame. import java.awt.BorderLayout; import java.awt.Button; import java.awt.CardLayout; import java.awt.Color; import java.awt.Container; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GridBagLayout; import java.awt.GridLayout; import java.awt.Image; import java.awt.Rectangle; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import javax.swing.*; import javax.swing.plaf.basic.BasicOptionPaneUI.ButtonActionListener; public class Frame implements MouseListener { public static boolean StartGame = false; JFrame frm = new JFrame("Action-Packed Jack"); ImageIcon img = new ImageIcon(getClass().getResource("/Images/ActionJackTitle.png")); ImageIcon StartImg = new ImageIcon(getClass().getResource("/Images/JackStart.png")); public Image Title; JLabel TitleL = new JLabel(img); public JPanel TitlePane = new JPanel(); public JPanel BoardPane = new JPanel(); JPanel cards; JButton StartB = new JButton(StartImg); Board nBoard = new Board(); static Sound nSound; public Frame() { frm.setLayout(new GridBagLayout()); cards = new JPanel(new CardLayout()); nSound = new Sound("/Sounds/BunchaJazz.wav"); TitleL.setPreferredSize(new Dimension(970, 420)); frm.add(TitleL); frm.add(cards); cards.setSize(new Dimension(150, 45)); cards.setLayout(new GridBagLayout ()); cards.add(StartB); StartB.addMouseListener(this); StartB.setPreferredSize(new Dimension(150, 45)); frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frm.setSize(1200, 420); frm.setVisible(true); frm.setResizable(false); frm.setLocationRelativeTo(null); frm.pack(); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new Frame(); } }); } public void mouseClicked(MouseEvent e) { nSound.play(); StartB.setContentAreaFilled(false); cards.remove(StartB); frm.remove(TitleL); frm.remove(cards); frm.setLayout(new GridLayout(1, 1)); frm.add(nBoard); //Add Game "Tiles" Or Content. x = 1200 nBoard.setPreferredSize(new Dimension(1200, 420)); cards.revalidate(); frm.validate(); } @Override public void mouseEntered(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mouseExited(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mousePressed(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mouseReleased(MouseEvent arg0) { // TODO Auto-generated method stub } }

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  • Can't remove JPanel from JFrame while adding new class into it

    - by A.K.
    Basically, I have my Frame class, which instantiates all the properties for the JFrame, and draws a JLabel with an image (my title screen). Then I made a separate JPanel with a start button on it, and made a mouse listener that will allow me to remove these objects while adding in a new Board() class (Which paints the main game). *Note: The JLabel is SEPARATE from the JPanel, but it still gets moved to the side by it. Problem: Whenever I click the button though, it only shows a little square of what I presume is my board class trying to run. Code below for the Frame Class: package OurPackage; //Made By A.K. 5/24/12 //Contains Frame. import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GridBagLayout; import java.awt.GridLayout; import java.awt.Image; import java.awt.Rectangle; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import javax.swing.*; import javax.swing.plaf.basic.BasicOptionPaneUI.ButtonActionListener; public class Frame implements MouseListener { public static boolean StartGame = false; ImageIcon img = new ImageIcon(getClass().getResource("/Images/ActionJackTitle.png")); ImageIcon StartImg = new ImageIcon(getClass().getResource("/Images/JackStart.png")); public Image Title; JLabel TitleL = new JLabel(img); public JPanel panel = new JPanel(); JButton StartB = new JButton(StartImg); JFrame frm = new JFrame("Action-Packed Jack"); public Frame() { TitleL.setPreferredSize(new Dimension(1200, 420)); frm.add(TitleL); frm.setLayout(new GridBagLayout()); frm.add(panel); panel.setSize(new Dimension(220, 45)); panel.setLayout(new GridBagLayout ()); panel.add(StartB); StartB.addMouseListener(this); StartB.setPreferredSize(new Dimension(220, 45)); frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frm.setSize(1200, 420); frm.setVisible(true); frm.setResizable(false); frm.setLocationRelativeTo(null); } public static void main(String[] args) { new Frame(); } public void mouseClicked(MouseEvent e) { StartB.setContentAreaFilled(false); panel.remove(StartB); frm.remove(panel); frm.remove(TitleL); //frm.setLayout(null); frm.add(new Board()); //Add Game "Tiles" Or Content. x = 1200 frm.validate(); System.out.println("Hit!"); } @Override public void mouseEntered(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mouseExited(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mousePressed(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mouseReleased(MouseEvent arg0) { // TODO Auto-generated method stub } }

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  • JButton Layout Issue

    - by Tom Johnson
    I'm putting together the basic layout for a contacts book, and I want to know how I can make the 3 test buttons span from edge to edge just as the arrow buttons do. private static class ButtonHandler implements ActionListener { public void actionPerformed(ActionEvent e) { System.out.println("Code Placeholder"); } } public static void main(String[] args) { //down button ImageIcon downArrow = new ImageIcon("down.png"); JButton downButton = new JButton(downArrow); ButtonHandler downListener = new ButtonHandler(); downButton.addActionListener(downListener); //up button ImageIcon upArrow = new ImageIcon("up.png"); JButton upButton = new JButton(upArrow); ButtonHandler upListener = new ButtonHandler(); upButton.addActionListener(upListener); //contacts JButton test1Button = new JButton("Code Placeholder"); JButton test2Button = new JButton("Code Placeholder"); JButton test3Button = new JButton("Code Placeholder"); Box box = Box.createVerticalBox(); box.add(test1Button); box.add(test2Button); box.add(test3Button); JPanel content = new JPanel(); content.setLayout(new BorderLayout()); content.add(box, BorderLayout.CENTER); content.add(downButton, BorderLayout.SOUTH); content.add(upButton, BorderLayout.NORTH); JFrame window = new JFrame("Contacts"); window.setContentPane(content); window.setSize(400, 600); window.setLocation(100, 100); window.setVisible(true); }

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  • java UnsatisfiedLinkError awt.image

    - by Allen
    I have a program that makes use of the following method to get a scaled instance of an image icon: public ImageIcon createScaledImageIcon(String filename) { ImageIcon icon = new ImageIcon(filename); Image image = icon.getImage().getScaledInstance(cardWidth, cardHeight, Image.SCALE_SMOOTH); icon.setImage(image); return icon; } I don't know if it's the source of the problem or not. But i get the following error messages: Exception in thread "Image Fetcher 0" java.lang.UnsatisfiedLinkError: sun.awt.image.ImageRepresentation.setBytePixels(IIII[BIILsun/awt/image/ByteComponentRaster;I)V at sun.awt.image.ImageRepresentation.setBytePixels(Native Method) at sun.awt.image.ImageRepresenation.setPixels(Unknown Source) at sun.awt.image.ImageDecoder.setPixels(Unknown Source) at sun.awt.image.GIFImageDecoder.sendPixels(Unknown Source) ... Let me know if there is any other information I could include that might be of use.

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  • Java Swing: how to add an image to a JPanel ?

    - by Leonel
    I have a JPanel to which I'd like to add JPEG and PNG images that I generate on the fly. All the examples I've seen so far in the Swing Tutorials, specially in the Swing examples use ImageIcons. I'm generating these images as byte arrays, and they are usually larger than the common icon they use in the examples, at 640x480. Is there any (performance or other) problem in using the ImageIcon class to display an image that size in a JPanel ? What's the usual way of doing it ? How to add an image to a JPanel without using the ImageIcon class ? Edit: A more careful examination of the tutorials and the API shows that you cannot add an ImageIcon directly to a JPanel. Instead, they achieve the same effect by setting the image as an icon of a JLabel. This just doesn't fill right...

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  • Java getResourceAsStream as local resource

    - by Dajgoro Labinac
    Before using LWJGL, I used the Graphic method, and there I displayed imageicons, and I had the picture file located in the resources. I used: ImageIcon tcard = new ImageIcon(this.getClass().getResource("RCA.png")); to load the image. Now when I load textures in LWJGL, I have to use absolute paths to locate the file: tcard = TextureLoader.getTexture("PNG", ResourceLoader.getResourceAsStream("C:/RCA.png")); I tried Googling, but I didn't find anything helpful. How can I load the image from the local resources like in the first example?

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