java中按钮监听以及鼠标监听的使用

Java中的按钮监听和鼠标监听可以通过实现ActionListener和MouseListener接口来实现。

按钮监听使用示例：

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class ButtonListenerExample implements ActionListener {
    private JFrame frame;
    private JButton button;

    public ButtonListenerExample() {
        frame = new JFrame("Button Listener Example");
        button = new JButton("Click me!");

        // 添加按钮监听器
        button.addActionListener(this);

        frame.setLayout(new FlowLayout());
        frame.add(button);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == button) {
            System.out.println("Button clicked!");
        }
    }

    public static void main(String[] args) {
        new ButtonListenerExample();
    }
}

鼠标监听使用示例：

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class MouseListenerExample implements MouseListener {
    private JFrame frame;
    private JPanel panel;

    public MouseListenerExample() {
        frame = new JFrame("Mouse Listener Example");
        panel = new JPanel();

        // 添加鼠标监听器
        panel.addMouseListener(this);

        frame.add(panel);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }

    public void mouseClicked(MouseEvent e) {
        System.out.println("Mouse clicked!");
    }

    public void mouseEntered(MouseEvent e) {
        System.out.println("Mouse entered!");
    }

    public void mouseExited(MouseEvent e) {
        System.out.println("Mouse exited!");
    }

    public void mousePressed(MouseEvent e) {
        System.out.println("Mouse pressed!");
    }

    public void mouseReleased(MouseEvent e) {
        System.out.println("Mouse released!");
    }

    public static void main(String[] args) {
        new MouseListenerExample();
    }
}