public class Demo extends JFrame {
private JTextArea textArea;
public Demo() {
setBounds(100, 100, 470, 300);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
Container c = getContentPane();
c.setLayout(null);
JLabel label1 = new JLabel("鼠标事件区域");
label1.setBounds(284, 37, 160, 20);
c.add(label1);
JLabel label = new JLabel();
label.setBounds(244, 57, 160, 141);
label.setBorder(BorderFactory.createLineBorder(Color.RED));
c.add(label);
textArea = new JTextArea();//创建文本域
JScrollPane scrollPane = new JScrollPane(textArea);//滚动面板
scrollPane.setBounds(20, 30, 190, 190);
c.add(scrollPane);
label.addMouseListener(new MyMouseEvent());//调用自定义方法类
setVisible(true);
}
//在MyMouseEvent上，Alt+Ins，快速创建方法。
class MyMouseEvent implements MouseListener {
@Override
public void mouseClicked(MouseEvent e) {
int btn = e.getButton();//获取鼠标按键
switch (btn) {
case MouseEvent.BUTTON1:
textArea.append("鼠标左键被点击\n");
break;
case MouseEvent.BUTTON2:
textArea.append("鼠标滚轮被点击\n");
break;
case MouseEvent.BUTTON3:
textArea.append("鼠标右键被点击\n");
break;
}
int count = e.getClickCount();
textArea.append("鼠标被点击了" + count + "次\n");
}
public void mousePressed(MouseEvent e) {
textArea.append("鼠标被按下\n");
}
public void mouseReleased(MouseEvent e) {
textArea.append("鼠标被释放\n");
}
public void mouseEntered(MouseEvent e) {
textArea.append("鼠标进入区域\n");
}
public void mouseExited(MouseEvent e) {
textArea.append("鼠标离开区域\n");
}
}
public static void main(String[] args) {
new Demo();
}
}