CODEWITHSUNDEEP
javaswingactionevent
Emil Zatania
Emil Zatania

Reputation: 78

How can I get the KeyStroke for an ENTER key using an ActionEvent?

I'm writing an application in Java where I need one thing to happen when the user presses letter keys and something different when the user hits ENTER but I can't seem to get a key name when I hit ENTER, only a new line.

I think I should be using getKeyStroke but I'm not sure if that's possible because I'm using ActionEvent.

This is what I'm doing so far:

panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke("A"), "doSomething");
panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke("B"), "doSomething");
panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke("C"), "doSomething");
panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke( "ENTER" ), "doSomething");
panelMaster.getActionMap().put("doSomething", anAction);

Then I have a separate class with the Action.

class AnAction extends AbstractAction{        
    public void actionPerformed(ActionEvent e) {
        System.out.println("Received: " + e.getActionCommand());
    }    
}

When I type two series of "a" then "b" then "c" then "ENTER" this is what my output looks like:

Received: a
Received: b
Received: c
Received: 

Received: a
Received: b
Received: c
Received:

Upvotes: 1

Views: 2136

Answers (2)

Pav
Pav

Reputation: 1

Try this: 

panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
           .put(KeyStroke.getKeyStroke( "pressed ENTER" ), "doSomething");
panelMaster.getActionMap().put("doSomething", anAction);

Upvotes: 0

NetherMole
NetherMole

Reputation: 37

You can use KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0)

Upvotes: 2

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