如何使用esc或按钮Java终止程序 [英] How to kill a program with esc or a button Java

问题描述

我希望我的程序运行，但是一旦按esc退出程序.我能想到的唯一方法是做一个扫描仪，然后寻找下一行，但这会暂停整个程序.也许是关键的倾听者，但是我如何使其不断得到检查?它是一个GUI.任何帮助都会很棒！

I want my program to run but once esc is pressed to quit the program. The only way I can think of doing this is by doing a scanner and looking for the next line but that pauses the whole program. Maybe a key listener but how do I make it be constantly checking? And it is a GUI. Any help would be great!

static Scanner sc = new Scanner(System.in);

stop = sc.nextLine();

if (stop.equals(a)){
running = false;
}
else{
do program
}

推荐答案

如果您使用框架，则可以注册密钥.

If u use a frame you can register the keys.

myFrame.getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(
    KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), "EXIT"); 
    myFrame.getRootPane().getActionMap().put("EXIT", new AbstractAction(){ 
        public void actionPerformed(ActionEvent e)
        {
            myFrame.dispose();
        }
    });

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