Control + W to exit system

Question

I am working on a game and here I want the end-user to press Ctrl + W to exit the system.

Here is the code that I've used:

int key = e.getKeyCode();
if(key == KeyEvent.VK_CONTROL && key == KeyEvent.VK_W) System.exit(1);

... but it didn't seem to work

Can anyone tell me what's wrong with my code?

Thanks in advance!

Well, `key` (as an `int`) can only be one value at a time, so it'll never be both keys simultaneously... — k_ssb, Jun 19 '18 at 11:43
So is there a way of using something like I had in my mind in Java? — Star, Jun 19 '18 at 11:44
Possible duplicate of [Java-check if control key is being pressed](https://stackoverflow.com/questions/11659801/java-check-if-control-key-is-being-pressed) — luk2302, Jun 19 '18 at 11:44
@Rich but I have another command which the end user presses W to move upwards — Star, Jun 19 '18 at 11:46

score 2 · Answer 1 · answered Jun 19 '18 at 11:48

2

KeyStroke keyExit = KeyStroke.getKeyStroke(KeyEvent.VK_CONTROL, KeyEvent.VK_W); 
Action performExit = new AbstractAction("Exit") {  
    public void actionPerformed(ActionEvent e) {     
        //exit method
    }
};

try with this kind of example.

answered Jun 19 '18 at 11:48

chamzz.dot

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The code isn't seeming to work... Where you commented `//exit method` I typed `System.exit(1);` – Star Jun 19 '18 at 12:24

score 0 · Answer 2 · answered Jun 19 '18 at 11:47

0

I would try something along the lines of:

int key = e.getKeyCode();
if(key == (KeyEvent.VK_CONTROL | KeyEvent.VK_W)) System.exit(1);

Though that's untested and is from memory.

answered Jun 19 '18 at 11:47

Rich

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But I have another control which uses W as a player moving up so if I press W the system will still exit – Star Jun 19 '18 at 11:51
@Star do you see the difference with what you are requesting? – Stultuske Jun 19 '18 at 11:55
@Stultuske yes... here if I press **W** from the keyboard it will exit the system as well. – Star Jun 19 '18 at 11:59
the | is an OR, so only one of the keys is enough to trigger it. but since Netbeans uses the CTRL+[] shortcuts in the menu, it should be possible. maybe check their code – Stultuske Jun 19 '18 at 12:25
I use Eclipse though as my JDK – Star Jun 19 '18 at 12:26

Control + W to exit system

2 Answers2