Example usage for java.awt.event KeyEvent KEY_LOCATION_UNKNOWN

Introduction

In this page you can find the example usage for java.awt.event KeyEvent KEY_LOCATION_UNKNOWN.

Prototype

int KEY_LOCATION_UNKNOWN

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Document

A constant indicating that the keyLocation is indeterminate or not relevant.

Usage

From source file:KeyTest.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Key Listener");
    Container contentPane = frame.getContentPane();

    KeyListener listener = new KeyListener() {
        public void keyPressed(KeyEvent e) {
            dumpInfo("Pressed", e);
        }/* ww w . j ava 2  s.  c o  m*/

        public void keyReleased(KeyEvent e) {
            dumpInfo("Released", e);
        }

        public void keyTyped(KeyEvent e) {
            dumpInfo("Typed", e);
        }

        private void dumpInfo(String s, KeyEvent e) {
            System.out.println(s);
            int code = e.getKeyCode();
            System.out.println("\tCode: " + KeyEvent.getKeyText(code));
            System.out.println("\tChar: " + e.getKeyChar());
            int mods = e.getModifiersEx();
            System.out.println("\tMods: " + KeyEvent.getModifiersExText(mods));
            System.out.println("\tLocation: " + location(e.getKeyLocation()));
            System.out.println("\tAction? " + e.isActionKey());
        }

        private String location(int location) {
            switch (location) {
            case KeyEvent.KEY_LOCATION_LEFT:
                return "Left";
            case KeyEvent.KEY_LOCATION_RIGHT:
                return "Right";
            case KeyEvent.KEY_LOCATION_NUMPAD:
                return "NumPad";
            case KeyEvent.KEY_LOCATION_STANDARD:
                return "Standard";
            case KeyEvent.KEY_LOCATION_UNKNOWN:
            default:
                return "Unknown";
            }
        }
    };

    JTextField text = new JTextField();
    text.addKeyListener(listener);
    contentPane.add(text, BorderLayout.NORTH);
    frame.pack();
    frame.show();
}

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