mouselistener

问题 Good Morning, i'm implementing the GUI for a game and when i play the game for sometime i get an endless number of this exception then the game freezes, any help on what is the problem or how to fix it is much appreciated here is the code: public class BoardFrame extends JFrame implements MouseListener { private void boardWithoutCheckers() { for(int i=0; i<8; i++) { for(int j=0; j< 8; j++) { if(((i + j) % 2) == 0){ boardFrame[i][j] = new LightGrayButton(); } else { boardFrame[i][j] = new

问题 Good Morning, i'm implementing the GUI for a game and when i play the game for sometime i get an endless number of this exception then the game freezes, any help on what is the problem or how to fix it is much appreciated here is the code: public class BoardFrame extends JFrame implements MouseListener { private void boardWithoutCheckers() { for(int i=0; i<8; i++) { for(int j=0; j< 8; j++) { if(((i + j) % 2) == 0){ boardFrame[i][j] = new LightGrayButton(); } else { boardFrame[i][j] = new

问题 Good Morning, i'm implementing the GUI for a game and when i play the game for sometime i get an endless number of this exception then the game freezes, any help on what is the problem or how to fix it is much appreciated here is the code: public class BoardFrame extends JFrame implements MouseListener { private void boardWithoutCheckers() { for(int i=0; i<8; i++) { for(int j=0; j< 8; j++) { if(((i + j) % 2) == 0){ boardFrame[i][j] = new LightGrayButton(); } else { boardFrame[i][j] = new

问题 Is it possible to create a Jbutton with both an ActionListener and MouseListener Meaning so i create a button and then when i press it ( throught actionListener) it changes the frame so that AFTER then button was pressed i can press anywhere on the frame and MouseListener would in use. JButton button = new JButton();//Creates Button button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { //Insert MouseListener //Then do something with mouseListener } });

问题 I have a problem with this... When I draw a line the character follows the line I drew but the computer paints a line somewhere else: So does anyone know what is going on? My code: @SuppressWarnings({"serial","rawtypes","unchecked"}) public class someGame extends JFrame implements MouseListener, KeyListener{ ArrayList lines = new ArrayList(); Point2D.Double start; final Color BROWN = new Color(156,93,82); Slider thread; Rectangle cow = null; boolean drawGuy = false; public someGame(){ super(

问题 Here is my code: import java.awt.event.*; import java.awt.*; import javax.swing.*; public class wind extends JFrame implements ComponentListener, MouseListener { JButton button; JLabel label; public wind() { // initialise instance variables setTitle("My First Window!"); setSize(400, 200); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); JPanel content = new JPanel(); content.setLayout(new FlowLayout()); content.addComponentListener(this); content.addMouseListener(this); label

问题 http://s019.radikal.ru/i626/1203/ae/8420ef7757f7.png JScrollPane.getVerticalScrollBar().addMouseListener(new MouseAdapter() { public void mouseClicked(MouseEvent e) { System.out.println("mouseClicked"); } public void mousePressed(MouseEvent e) { System.out.println("mousePressed"); } public void mouseReleased(MouseEvent e) { System.out.println("mouseReleased"); } }); It works if I click on the strip, but does not work when I click on the buttons 回答1: The buttons are defined in the JScrollBar's

问题 I'm writing a board game with a GUI and basically I have a 10x10 GridLayout JPanel. Each grid cell is a square JPanel (I used BorderLayout for these JPanels so the borders are visible). Anyway I want it so that when one of these squares is clicked, it makes a change to the boardGameGrid which is a class imported to the GUI for the backend of the game. Say I want to use the method boardGameGrid.setCellCross(x,y) when the cell at position (x,y) is pressed. I can't figure out how to do this

问题 I have a JPanel with multiple components in it - like a few JLabels , JTextBoxes , JComboBoxes , JCheckBoxes etc. I want to display a pop up help window if the user hovers over these components for say 3 secs. So far I added a MouseListener to one of my Components and it does display the required pop up and help. However I can't achieve it after 3 sec delay. As soon as the user moves the mouse to through that area of the component the pop up displays. This is very annoying as the components

问题 I am a huge fan for vanilla javascript, currently I am working on a project where I need to implement smooth scrolling on mouse wheel scroll. I want to implement this using vanilla JS. I found a jQuery snippet on doing some research which go like below. $(window).on('mousewheel DOMMouseScroll', function(e) { var dir, amt = 100; e.preventDefault(); if(e.type === 'mousewheel') { dir = e.originalEvent.wheelDelta > 0 ? '-=' : '+='; } else { dir = e.originalEvent.detail < 0 ? '-=' : '+='; } $(