首先咱们应该知道鼠标点击事件怎么实现java
其部分代码以下app
if (anyEvent.getButton() == MouseEvent.BUTTON1) {}e.getButton()返回值分别为NOBUTTON、BUTTON一、BUTTON二、BUTTON3,分别表明着无点击、左击、中间键、右击三种状况
<span style="font-family:Verdana;">事件源</span>.addMouseListener(new MouseAdapter() {//创建事件处理机制 @Override public void mouseClicked(MouseEvent e) { if(e.getButton()==e.BUTTON1){//点击鼠标左键 int x=e.getX(); int y=e.getY(); String str="您点击的是左键,鼠标当前点击位置的坐标是(" + x + "," + y+")"; label.setText(str); }else if(e.getButton()==e.BUTTON2){//点击鼠标滑轮 int x=e.getX(); int y=e.getY(); String str="您点击的是滑轮,鼠标当前点击位置的坐标是(" + x + "," + y+")"; label.setText(str); } else if(e.getButton()==e.BUTTON3){//点击鼠标右键 int x=e.getX(); int y=e.getY(); String str="您点击的是右键,鼠标当前点击位置的坐标是(" + x + "," + y+")"; label.setText(str); } } });
package BookProblem; import java.awt.BorderLayout; import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.border.EmptyBorder; import javax.swing.JLabel; import java.awt.Color; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; public class P381Problem6A extends JFrame { private JPanel contentPane; /** * Launch the application. */ public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { P381Problem6A frame = new P381Problem6A(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } /** * Create the frame. */ public P381Problem6A() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(null); JLabel label = new JLabel("此处显示鼠标右键点击的坐标"); label.setBounds(5, 5, 424, 31); label.setOpaque(true);//设置控件不透明 label.setBackground(Color.GREEN); //<span style="font-family:Verdana;">设置标间颜色</span> contentPane.add(label); contentPane.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { if(e.getButton()==e.BUTTON1){ int x=e.getX(); int y=e.getY(); String str="您点击的是左键,鼠标当前点击位置的坐标是(" + x + "," + y+")"; label.setText(str); }else if(e.getButton()==e.BUTTON2){ int x=e.getX(); int y=e.getY(); String str="您点击的是滑轮,鼠标当前点击位置的坐标是(" + x + "," + y+")"; label.setText(str); } else if(e.getButton()==e.BUTTON3){ int x=e.getX(); int y=e.getY(); String str="您点击的是右键,鼠标当前点击位置的坐标是(" + x + "," + y+")"; label.setText(str); } } }); } }