Question

java如何实现按钮点击时改变按钮的颜色，还有鼠标移动到按钮可以改变按钮颜色

急求！求大虾回答~

Answer 1

按钮事件+css就解决了

Answer 2

添加按钮的事件就好了啊

追问

我知道添加事件，但如何实现？~

追答

import java.awt.Color;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JButton;
import javax.swing.JFrame;

public class BtnTest extends JFrame{
private JButton btn;
public void init(){
btn = new JButton("测试");
btn.addMouseListener(new MouseAdapter() {
@Override
public void mouseEntered(MouseEvent e) {
btn.setBackground(Color.red);
}
@Override
public void mouseExited(MouseEvent e) {
btn.setBackground(Color.white);
}
@Override
public void mouseClicked(MouseEvent e) {
btn.setBackground(Color.black);
}

@Override
public void mousePressed(MouseEvent e) {
btn.setBackground(Color.yellow);
}
});
this.add(btn);
this.pack();
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new BtnTest().init();
}
}