java入门级小程序问题？

来源：百度知道编辑：UC知道时间：2024/05/27 01:00:43

import java.awt.*;
import java.awt.event.*;
public class Awt1 {

/**
* @param args
*/
public static void main(String[] args) {
// TODO 自动生成方法存根
final Frame f=new Frame("awt1");
f.setSize(300,400);
f.setVisible(true);
f.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
f.setVisible(false);
f.dispose();
System.exit(0);
}
});
Button b1 =new Button("b1");
Button b2=new Button("b2");
b1.addActionListener(new r1());
b2.addActionListener(new r1());
class r1 implements MouseListener{
public r1(){
super();
}
public void mouseClicked(MouseEvent q)
{
System.out.println(((Button)q.getSource()).getName());
}
public void mousePressed(MouseEvent q){

}
public void mouseReleased(MouseEvent q){

}
public void mouseExited(Mo

import java.awt.*;
import java.awt.event.*;

public class TestAWT {
public static void main(String[] args) {

Frame f = new Frame("awt1");

f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});

Button b1 = new Button("b1");
Button b2 = new Button("b2");
b1.addMouseListener(new r1());
b2.addMouseListener(new r1());

f.add("North", b1);
f.add("South", b2);
f.setSize(300, 400);
f.setVisible(true);

}

}
class r1 implements MouseListener {
public r1() {
super();
}

public void mouseClicked(MouseEvent q) {
System.out.println(((Button) q.getSource()).getName());
}

public void mousePressed(MouseEvent q) {

}

public void mouseReleased(MouseEvent q)

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