?? ch10ex1.java
字號:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ch10ex1{
public static void main(String args[]){
JFrame win1=new JFrame("The First Window");
win1.setSize(300,200);
win1.setLocation(50,50);
JLabel mylabel=new JLabel("This is a label");
win1.getContentPane().add(mylabel);
WindowDestroyer myListener=new WindowDestroyer();
win1.addWindowListener(myListener);
win1.setVisible(true);
}
}
class WindowDestroyer extends WindowAdapter{
public void windowClosing(WindowEvent e){
System.exit(0);
}
}
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