Test is not abstract and does not override abstract method getServletConfig() in javax.servlet.Servlet [duplicate]

The code:

import javax.servlet.*;import java.io.*;public class Test implements Servlet {  public void init(ServletConfig config) throws ServletException {    System.out.println("i am init().........");  }  public void service(ServletRequest req, ServletResponse res)      throws ServletException, IOException {    System.out.println("i am service().........");  }  public void destroy() {    System.out.println("i am destory().........");  }  public String getServletInfo() {    return "servlet version ";  }}

The ERROR:

Test.java:4: Test is not abstract and does not override abstract method getServletConfig() in javax.servlet.Servletpublic class Test implements Servlet       ^