KeyPressed event in java

Question

I have just created a java tic-tac-toe game i would like to figure out how to run a method once the enter key is pressed during a certain condition an example is below...

Answer 1

One way is to implement the KeyListener interface and its key event methods. For example,

public class MyClass  implements KeyListener {
    public void keyTyped(KeyEvent e) {
        // Invoked when a key has been typed.
    }

    public void keyPressed(KeyEvent e) {
        // Invoked when a key has been pressed.
        if (e.getKeyCode() == KeyEvent.VK_ENTER && yourOtherCondition) {
            myMethod();
        }
    }

    public void keyReleased(KeyEvent e) {
        // Invoked when a key has been released.
    }
}

Then add this listener with

myComponent.addKeyListener(new MyClass());

Or if you prefer,

myComponent.addKeyListener(new KeyListener() {
    public void keyPressed(KeyEvent e) { /* ... */ }

    public void keyReleased(KeyEvent e) { /* ... */ }

    public void keyTyped(KeyEvent e) { /* ... */ }
});

See this for more details.