3月21日，TestFrame对象是事件源又是监听者，每日20行。

原创于 2017-03-21 21:11:38 发布 · 224 阅读

CC 4.0 BY-SA版权

本文提供了一个使用Java AWT库创建窗口并实现窗口关闭监听功能的简单示例。该示例通过继承Frame类并实现WindowListener接口来响应窗口关闭事件。

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import java.awt.*;
import java.awt.event.*;
public class TestFrame extends Frame implements WindowListener {
    public TestFrame(String s) {
        super(s);
    }
    public void windowClosing(WindowEvent e) {
        System.out.println("我退出了！");
        e.getWindow().setVisible(false);
        ((Window)e.getComponent()).dispose();
        System.exit(0);
    }
    public void windowActivated(WindowEvent e) {}
    public void windowClosed(WindowEvent e) {}
    public void windowDeactivated(WindowEvent e) {}
    public void windowDeiconified(WindowEvent e) {}
    public void windowIconified(WindowEvent e) {}
    public void windowOpened(WindowEvent e) {}

    public static void main(String[] args) {
        TestFrame f = new TestFrame("A Test Window");
        f.setSize(320, 180);
        f.setVisible(true);
        f.addWindowListener(f);
    }

}