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POWhy is my keylistener not working?
 

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  1. POWhy is my keylistener not working?
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    <p>Why is my keyListener not working in this code? Can somebody explain this to me? I have been trying to add it to my frame but it still does not work when i run the file... Have been trying to do alot of things but still cant figure it out ^.^</p> <pre><code> package week3.position; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.util.ArrayList; import java.util.List; import javax.swing.*; /** * * @author Jelle Siderius */ public class Main { public static void main(String[] args) { createFrame(); } public static void createFrame() { final JFrame frame = new JFrame(); frame.setSize(500, 500); frame.setTitle("Vierkanten"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Dimension dlp1 = new Dimension(300, 500); final JPanel lp1 = new JPanel(new BorderLayout()); lp1.setPreferredSize(dlp1); JPanel lp11 = new JPanel(); lp11.setPreferredSize(new Dimension(50, 500)); JPanel lp12 = new JPanel(); lp12.setPreferredSize(new Dimension(50, 500)); JPanel lp2 = new JPanel(new BorderLayout()); lp2.setBackground(Color.BLUE); lp2.setSize(200, 500); JPanel lp21 = new JPanel(); Dimension d21 = new Dimension(200, 100); lp21.setPreferredSize(d21); lp2.add(lp21, BorderLayout.NORTH); JPanel lp22 = new JPanel(); Dimension d22 = new Dimension(200, 300); lp22.setPreferredSize(d22); JLabel lable22 = new JLabel("Aantal vierkanten: "); final JTextField text22 = new JTextField(10); JButton button22 = new JButton("Teken!"); ActionListener buttonClick = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { int aantal = Integer.parseInt(text22.getText()); Circle circle = new Circle(aantal); lp1.add(circle); frame.revalidate(); frame.repaint(); if (circle.getekend == true) { lp1.removeAll(); lp1.updateUI(); lp1.add(circle); frame.revalidate(); frame.repaint(); } } }; lp22.add(lable22); lp22.add(text22); lp22.add(button22); button22.addActionListener(buttonClick); lp2.add(lp22, BorderLayout.CENTER); JPanel lp23 = new JPanel(); Dimension d23 = new Dimension(200, 100); lp23.setPreferredSize(d21); lp2.add(lp23, BorderLayout.SOUTH); frame.add(lp1, BorderLayout.CENTER); frame.add(lp2, BorderLayout.EAST); frame.addKeyListener(new KeyListener() { @Override public void keyTyped(KeyEvent e) { throw new UnsupportedOperationException("Not supported yet."); } @Override public void keyPressed(KeyEvent e) { throw new UnsupportedOperationException("Not supported yet."); } @Override public void keyReleased(KeyEvent e) { throw new UnsupportedOperationException("Not supported yet."); } }); frame.setVisible(true); } } </code></pre>
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    1. This table or related slice is empty.
    1. USJelle Siderius
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    1. CODefine "not working". Is it never called or does it have an unexpected result? Did you try tracing something to see if actionPerformed is called?
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      1. POWhy is my keylistener not working?
      1. USPierre Arlaud
    2. COI get no messages back in my console...
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      1. POWhy is my keylistener not working?
      1. USJelle Siderius
    3. CORead the second note on this page: http://docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html
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      1. POWhy is my keylistener not working?
      1. USPierre Arlaud
 

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