JFrame 关闭操作

我想知道是否有办法通过单击X"让程序在关闭 JFrame 之前执行一些代码.setDefaultCloseOperation() 方法只接受一个整数.

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

解决方案

您可能对使用 WindowListener.WindowListener 教程.p>

I was wondering if there is a way, by clicking on the "X", to let the program perform some code before closing the JFrame. The setDefaultCloseOperation() method takes only an integer.

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

解决方案

You might be interested in using a WindowListener. The WindowListener tutorial.