Move the Focus with the TAB Key in a JTextArea in Java

//from w  ww  .j a v a  2 s . c o m
import java.awt.Component;
import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JTextArea;

public class Main {
  public static void main(String[] argv) throws Exception {

    JTextArea component = new JTextArea();

    NextFocusAction nextFocusAction = new NextFocusAction();
    PrevFocusAction prevFocusAction = new PrevFocusAction();
    
    component.getActionMap().put(nextFocusAction.getValue(Action.NAME), nextFocusAction);
    component.getActionMap().put(prevFocusAction.getValue(Action.NAME), prevFocusAction);
  }
}

class NextFocusAction extends AbstractAction{
  public NextFocusAction(){
    super("Move Focus Forwards");
  }
  public void actionPerformed(ActionEvent evt) {
    ((Component) evt.getSource()).transferFocus();
  }
}
class PrevFocusAction extends AbstractAction {
  public PrevFocusAction(){
    super("Move Focus Backwards");
  }
  public void actionPerformed(ActionEvent evt) {
    ((Component) evt.getSource()).transferFocusBackward();
  }
}