視窗監聽-匿名內部類-2022-12-10
阿新 • • 發佈:2022-12-10
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class windowDemo11 {
public static void main(String[] args) {
windowFrame windowFrame = new windowFrame();
}
}
class windowFrame extends Frame{
public windowFrame(){
setBackground(Color.BLUE);
setBounds(100,100,200,150);
setVisible(true);
//addWindowListener(new myWindowListener());
this.addWindowListener(
//匿名內部類
new WindowAdapter() {
//關閉
@Override
public void windowClosing(WindowEvent e) {
System.out.println("windowClosing");
System.exit(0);
}
//啟用
@Override
public void windowActivated(WindowEvent e) {
windowFrame windowFrame = (windowFrame) e.getSource();
windowFrame.setTitle("你激活了");
System.out.println("windowActivated");
}
}
);
}
}