窗口事件之按钮事件

package Demo; import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.awt.Window; import java.awt.event.*; public class Demo extends JFrame{ public void setListener() { JFrame frame = new JFrame(); frame.setSize(300,300); frame.setTitle("消音之家"); JButton button = new JButton("切换按钮"); frame.add(button); frame.setVisible(true); frame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.out.println("程序退出"); System.exit(0); } }); //new ActionListener()的作用是传入一个行为监听类ActionListener，然后重写类ActionListener的方法public void actionPerformed(ActionEvent e) button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.out.println("程序退出"); System.exit(0); } }); } public static void main(String[] args) { Demo demo = new Demo(); demo.setListener(); } }

调试 点击切换按钮会关掉这个窗口，实现获取鼠标事件来关掉窗口。