Button focus with key pressed

Question

hi,
i want a button to get focus when the user presses a key on the keyboard. Thankz

Answer 1

have the focus anywhere in the textFields, press F1, and the focus will go to the button
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class Testing
  public void buildGUI()
    JPanel p = new JPanel(new GridLayout(6,1));
    for(int x = 0; x < 5; x++) p.add(new JTextField(5));
    final JButton btn = new JButton("OK");
    p.add(btn);
    JFrame f = new JFrame();
    f.getContentPane().add(p);
    f.pack();
    f.setLocationRelativeTo(null);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
    KeyboardFocusManager.getCurrentKeyboardFocusManager()
     .addKeyEventDispatcher(new KeyEventDispatcher(){
        public boolean dispatchKeyEvent(KeyEvent ke){
          if(ke.getKeyCode() == KeyEvent.VK_F1 && ke.getID() == KeyEvent.KEY_PRESSED)
            btn.requestFocusInWindow();
          return false;
  public static void main(String[] args)
    SwingUtilities.invokeLater(new Runnable(){
      public void run(){
        new Testing().buildGUI();
}