JavaGUI编程之窗口监听事件和键盘监听事件（AWT）

窗口监听事件：

示例代码：

package GUI.TestWindow;

import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class TestWindow {
     
    public static void main(String[] args) {
     
        new WindowFrame();
    }
}

class WindowFrame extends Frame {
     
    public WindowFrame() throws HeadlessException {
     
        setBackground(Color.ORANGE);
        setBounds(100, 100, 400, 300);
        setVisible(true);
        addWindowListener(new WindowAdapter() {
     
            //            关闭窗口
            @Override
            public void windowClosing(WindowEvent e) {
     
                System.out.println("windowClosing");
                setVisible(false);// 隐藏窗口
                System.exit(0);// 关闭窗口
            }

            //            激活窗口
            @Override
            public void windowActivated(WindowEvent e) {
     
                WindowFrame windowFrame = (WindowFrame) e.getSource();
                windowFrame.setTitle("被激活了");//把窗口的title设置为"被激活了"
                System.out.println("windowActivated");
            }
        });
    }

}

运行结果：

键盘监听

示例代码：

package GUI.TestKey;

import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

public class TestKeyListener {
     
    public static void main(String[] args) {
     
        new KeyFrame();
    }
}

class KeyFrame extends Frame {
     
    public KeyFrame() throws HeadlessException {
     
        setBounds(100, 100, 200, 100);
        setVisible(true);
        addKeyListener(new KeyAdapter() {
     
            //            键盘按下
            @Override
            public void keyPressed(KeyEvent e) {
     
//                获得键盘按下的键是哪一个 你可以自己去根据按下的键设置相应的事件
                System.out.println(e.getKeyChar());
            }
        });
    }
}