Java: How to add a shortkey to a component

Question

In the JMenuItem class you can add a shortkey. Is this possible to add this shortkey to a component or the application without using a JMenu.

score 2 · Accepted Answer · edited May 23 '17 at 11:47

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This example should get you on your way.

edited May 23 '17 at 11:47

Community

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answered Oct 02 '09 at 19:21

Tom

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score 0 · Answer 2 · answered Oct 20 '12 at 09:24

Not only buttons may have mnemonics. Mnemonics (shortcuts) for other components may be specified indirectly through their labels.

You need to create a label for the component and setDisplayedMnemonic for it. Then you attach the label to a component using setLabelFor. The code looks like this:

JLabel lab1 = new JLabel("Text 1");
lab1.setDisplayedMnemonic('e');
JTextField tf1 = new JTextField(20);
lab1.setLabelFor(tf1);

score 0 · Answer 3 · edited Sep 11 '11 at 11:33

Components that extend AbstractButton have methods that allow you to set the mnemonic or accelerator. For other you need to do this yourself.

All Swing components use Key Bindings (even the JMenu you describe above). It works by binding a KeyStroke to an Action. To find all the current Swing bindings you can check out Key Bindings. The entry also include a link to the Swing tutorial on "How to Use Key Bindings".

OscarRyz · Answer 4 · 2009-10-02T19:26:48.020

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You could attach a KeyListener to any component.

You could process they keystrokes there and process the action desired:

See the tutorial for a complete example:

edited Oct 02 '09 at 19:26

answered Oct 02 '09 at 19:20

OscarRyz

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You could but thats not the way Swing was designed to be used. Swing introduced InputMaps and ActionMaps for this purpose. – camickr Oct 02 '09 at 19:49
@camickr: At least that's an option :) Thanks for the comment ;) – OscarRyz Oct 02 '09 at 21:02

Java: How to add a shortkey to a component

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