控件焦点和键盘事件

javaTextField.addFocusListener(new FocusListener()
{
public void focusLost(FocusEvent e) { 
javaTextField.requestFocus();

}
 public void focusGained(FocusEvent e) {
}

};


javaTextField.addKeyListener(new KeyAdapter() {
  public void keyReleased(KeyEvent e) {
 
if(e.getKeyCode==  KeyEvent.VK_ENTER) 

{

}

}

 

public void keyTyped(KeyEvent e) {
}

public void keyPressed(KeyEvent e) {
 }
  });