鼠标的左击、中击、右击事件及Frame的关闭

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import java.awt.Button;import java.awt.Frame;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import javax.swing.JFrame;public class ButtonEvent extends WindowAdapter {public ButtonEvent() {Frame f  =new Frame();f.setSize(100, 100);Button b = new Button("eeee");b.addMouseListener(new MouseAdapter(){         //Button b 注册鼠标监听器,并且这里用了内部类public void mousePressed(MouseEvent e){        if(e.getButton()== e.BUTTON1)        {        System.out.println("左击");        }        if(e.getButton()== e.BUTTON2)        {        System.out.println("中击");        }        if(e.getButton()==e.BUTTON3)        {        System.out.println("右击");        }    }});f.add(b);f.addWindowListener (this);  //窗体f－－注册窗体事件监听器f.setVisible(true);}public void windowClosing(WindowEvent e) {  System.exit(0); }public static void main(String[] args) {new ButtonEvent();}}

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