import java.awt.AWTKeyStroke; import java.awt.KeyboardFocusManager; import java.util.HashSet; import java.util.Set; import javax.swing.KeyStroke; public class Main { public static void main(String[] argv) throws Exception { Set<AWTKeyStroke> set = new HashSet<AWTKeyStroke>(KeyboardFocusManager .getCurrentKeyboardFocusManager().getDefaultFocusTraversalKeys( KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS)); set.add(KeyStroke.getKeyStroke("F3")); KeyboardFocusManager.getCurrentKeyboardFocusManager().setDefaultFocusTraversalKeys( KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, set); } }