Simple key press listener
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import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.JFrame;
import javax.swing.JTextField;
public class Main {
public static void main(String[] argv) throws Exception {
JTextField textField = new JTextField();
textField.addKeyListener(new MKeyListener());
JFrame jframe = new JFrame();
jframe.add(textField);
jframe.setSize(400, 350);
jframe.setVisible(true);
}
}
class MKeyListener extends KeyAdapter {
@Override
public void keyPressed(KeyEvent event) {
char ch = event.getKeyChar();
if (ch == 'a' ||ch == 'b'||ch == 'c' ) {
System.out.println(event.getKeyChar());
}
if (event.getKeyCode() == KeyEvent.VK_HOME) {
System.out.println("Key codes: " + event.getKeyCode());
}
}
}
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