java的鼠标移动事件

爱学习的小伙伴们，可能都可能都学过Java，但是你知道java的鼠标移动事件是什么吗?不知道的话跟着小编一起来学习了解java的鼠标移动事件。

java的鼠标移动事件代码介绍

import java.awt.BorderLayout;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.MouseMotionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JTextField;

public class mymouse {

static JFrame frm;

static JTextField tf;

static JButton btn;

static int x, y,px, py,bx,by,offx,offy; //

public static void main(String[] args) {

frm = new JFrame("dialog");

frm.setBounds(400, 100, 500, 400);

frm.setLayout(null);

tf = new JTextField();

tf.setBounds(60,200,200,20);

btn = new JButton("move me");

btn.setBounds(60,40,100,50);

frm.add(tf);

frm.add(btn);

btn.addMouseMotionListener(new mymousemotion());

btn.addMouseListener(new mymouselistener());

frm.setVisible(true);

frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

static class mymousemotion implements MouseMotionListener{

public void mouseDragged(MouseEvent e) {

//

x=e.getX()-px+bx;

y=e.getY()-py+by;

btn.setLocation(x, y);

tf.setText("button location :"+x+","+y);

bx=x;

by=y;

}

public void mouseMoved(MouseEvent e) {

}

}

static class mymouselistener extends MouseAdapter{

public void mousePressed(MouseEvent e){

//鼠标点击位置相对 btn 的坐标.

px=e.getX();

py=e.getY();

//获取 btn 相对 frm 的坐标

bx=btn.getLocation().x;

by=btn.getLocation().y;

String str=px+","+py+" . "+bx+","+by;

tf.setText(str);