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？

Answer 1

addWindowListener(new WindowAdapter(){

@Override
public void windowClosing(WindowEvent e) {
int i=JOptionPane.showConfirmDialog(null, "是否退出");

if(i==0){
System.out.println("关闭");
}
}

});