Setting up a gui and the actionlisteners..?

Question

hi... i am new to java...so this might be a stupid question ...this is w i did until now:
import java.awt.Color;
import java.awt.GridLayout;
import javax.swing.JPanel;
import javax.swing.border.*;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import java.awt.event.*;
public class menuepanel extends JPanel
public menuepanel()
Border rille = BorderFactory.createEtchedBorder();
setBorder(rille);
public menuepanel(String text)
ImageIcon symbol = new ImageIcon("Smiley.jpg");
setLayout(new GridLayout(24,0));
JButton regel = new JButton("Regeln");
regel.setBackground(Color.darkGray);
regel.setForeground(Color.white);
regel.setMnemonic('r');
add(regel);
JButton histo = new JButton("History");
histo.setBackground(Color.darkGray);
histo.setForeground(Color.white);
histo.setMnemonic('h');
add(histo);
JButton hisco = new JButton("Highscore");
hisco.setBackground(Color.darkGray);
hisco.setForeground(Color.white);
hisco.setMnemonic('s');
add(hisco);
JButton mstart = new JButton("M�hle Starten");
mstart.setBackground(Color.darkGray);
mstart.setForeground(Color.white);
mstart.setMnemonic('m');
add(mstart);
JButton exc = new JButton("Spiel abbrechen");
exc.setBackground(Color.darkGray);
exc.setForeground(Color.white);
exc.setMnemonic('a');
add(exc);
JButton test = new JButton("test");
test.setBackground(Color.darkGray);
test.setForeground(Color.white);
test.setMnemonic('t');
add(test);
JButton exit = new JButton("Fenster schlie�en");
exit.setBackground(Color.darkGray);
exit.setForeground(Color.white);
exit.setMnemonic('f');
exit.setActionCommand("exit");
add(exit);
my question is:
what do i have to do now to get an action if i hit a button?
could some1 give me a short example, like how the code should look if i want the gui-window to be close when hitting the exit-button?
please help
pfff

Answer 1

import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
import java.awt.event.*;
class menuepanel extends JPanel implements ActionListener
  String[] buttonText = {"Regeln","History","Highscore","M�hle Starten",
                         "Spiel abbrechen","test","Fenster schlie�en"};
  char[] mnemonic = {'r','h','s','m','a','t','f'};
  JButton[] btn = new JButton[buttonText.length];
  public menuepanel()
    Border rille = BorderFactory.createEtchedBorder();
    setBorder(rille);
    setLayout(new GridLayout(7,1));
    for(int x = 0; x < btn.length; x++)
      btn[x] = new JButton(buttonText[x]);
      btn[x].setBackground(Color.darkGray);
      btn[x].setForeground(Color.white);
      btn[x].setMnemonic(mnemonic[x]);
      btn[x].addActionListener(this);
      add(btn[x]);
  public void actionPerformed(ActionEvent ae)
    if(ae.getActionCommand().equals(buttonText[buttonText.length-1])) System.exit(0);
class MainApplication extends JFrame
  public MainApplication()
    setLocation(400,300);
    setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
    getContentPane().add(new menuepanel());
    pack();
  public static void main(String[] args){new MainApplication().setVisible(true);}
}