Java如何处理鼠标单击事件？
package org.nhooo.example.swing;
import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class MouseClickEventDemo extends JFrame {
public MouseClickEventDemo() {
initComponents();
}
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> new MouseClickEventDemo().setVisible(true));
}
private void initComponents() {
setSize(500, 300);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
final JTextArea textArea = new JTextArea();
textArea.setText("Click Me!");
textArea.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
if (e.getButton() == MouseEvent.NOBUTTON) {
textArea.setText("No button clicked...");
} else if (e.getButton() == MouseEvent.BUTTON1) {
textArea.setText("Button 1 clicked...");
} else if (e.getButton() == MouseEvent.BUTTON2) {
textArea.setText("Button 2 clicked...");
} else if (e.getButton() == MouseEvent.BUTTON3) {
textArea.setText("Button 3 clicked...");
}
textArea.append("Number of click: " + e.getClickCount());
textArea.append("Click position (X, Y): " + e.getX() +
", " + e.getY());
}
});
getContentPane().add(textArea);
}
}
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