Question

java中JFrame 窗口关闭时，弹出一个对话框提示是否确定关闭，这段代码怎么写？

能发个完整代码也行应该是这个接口吧，WindowClosing（WindowEvent e）谢谢！！

Answer 1

public class ButtonFrame extends JFrame {
public ButtonFrame() {
setSize(500, 500);
setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
addWindowListener(new WindowAdapter(){
@Override
public void windowClosing(WindowEvent e) {
if(JOptionPane.showConfirmDialog(null,"是否退出")==JOptionPane.OK_OPTION)
System.exit(0);
}
});
} public static void main(String[] args) {
new ButtonFrame().setVisible(true);
}
}