java输入密码后回车执行登陆

…java

1. final JButton b2 = new JButton(“登 录”);

2. 给密码框加入回车监听键，并引用登陆键对象
   final JTextField password = new JTextField("");//文本框：存储了你输入的密码
   password.addKeyListener(
   new KeyListener(){
   public void keyPressed(KeyEvent e){
   if(e.getKeyCode()==KeyEvent.VK_ENTER){
   b2.doClick();
   }
   }
   public void keyReleased(KeyEvent e){
   }
   public void keyTyped(KeyEvent e){
   }
   }
   );