问题描述
两者之间有什么区别吗?我正在阅读一篇文章()关于你应该总是使用
Is there any difference between the two. I was reading an article ( http://www.javalobby.org/java/forums/t17933 ) about that you should always use
System.exit(0);
目前我使用
JFrame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
文章说即使是Java Swing应用程序,你也应该添加一个监听器 WindowAdapter
并在其方法 windowClosing(WindowEvent e)中调用
。 System.exit()
The article says that even for a Java Swing Application you should add a listener WindowAdapter
and and call System.exit()
inside its method windowClosing(WindowEvent e)
.
有什么区别吗?一种方法比另一种更好吗?
Is there any difference? Is one method better then the other?
推荐答案
如果查看JFrame代码,它会:
If you look at the JFrame code, it does:
protected void processWindowEvent(WindowEvent e) {
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
switch(defaultCloseOperation) {
...
case EXIT_ON_CLOSE:
// This needs to match the checkExit call in
// setDefaultCloseOperation
System.exit(0);
break;
}
}
}
所以,它完全一样事情。我只想设置EXIT_ON_CLOSE,如果这是你想要它做的。
So, it's exactly the same thing. I would just set EXIT_ON_CLOSE if that's what you want it to do.
这篇关于System.exit(0)vs JFrame.EXIT_ON_CLOSE的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!