程序在java中退出时调用函数

问题描述

我想在每次用户退出程序时保存程序设置。所以当用户退出程序时，我需要一种方法来调用函数。我如何做？

I would like to save the programs settings every time the user exits the program. So I need a way to call a function when the user quits the program. How do I do that?

我正在使用Java 1.5。

I am using Java 1.5.

推荐答案

p>您可以通过执行以下操作为应用程序添加一个关闭钩子：

You can add a shutdown hook to your application by doing the following:

Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
    public void run() {
        // what you want to do
    }
}));

这基本上等同于在整个程序中尝试{} finally {}包含最后的块中的内容。

This is basically equivalent to having a try {} finally {} block around your entire program, and basically encompasses what's in the finally block.

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