求助，疑惑不解！！！

import javax.swing.*; import java.awt.*; import java.awt.event.*;

class Login extends JFrame implements KeyListener,ActionListener { .....Longin() {...........}; //省略构造函数

public static void main(String args[])

{

Longin l=new Longin();

}

}

Login is not abstract and dose not override abstract method keyTyped(java.awt.event.KeyEvent)in java.awt.event.KeyListener

在编译过后会有这个错误不懂错在什么地方，求助.......