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Cannot find symbol error

i have this code and when i compile it using javac it show cannot fin symbol error on the interface name below is the code and attached is the error. please i need the solution for these error.




package JobPackage;

import java.rmi.RemoteException;

import java.rmi.server.UnicastRemoteObject;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.*;


/*

 * To change this license header, choose License Headers in Project Properties.

 * To change this template file, choose Tools | Templates

 * and open the template in the editor.

 */


/**

 *

 * @author pc

 */

public class JobImplement extends UnicastRemoteObject implements JobInterface {

  public JobImplement() throws Exception {

  super();

}

   String username;

     String password;

public boolean login(String user,String pass) throws RemoteException{

  try{

  Class.forName("com.mysql.jdbc.Driver");

  Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/recruitment_db","root","");

  Statement stmt = (Statement) conn.createStatement();

  String query = "select users from vacancy where id = 1";

  ResultSet rs = stmt.executeQuery(query);

  while(rs.next()){

  rs.getString("usernmae");

  rs.getString("password");

if (user.equals(username) && pass.equals(password))

return true;


else

return false;

  }

  }

  catch(Exception e){}

  return false;

}

public boolean register(String firstname,String lastname, String sex, String fieldofstudy, float gpa,int age) throws RemoteException{

return true;


}

public boolean recrregister(String companyname,String comapanylocation, String username, String password) throws RemoteException{


return true;

}

public String search(String searchtext) throws RemoteException{

  return "Done";  

}

public void apply(String jobid, String applyfullname) throws RemoteException{



}

public void post(String jobtitle, String description) throws RemoteException{


}

public String showapplied(String jobtitle, String applyfullname) throws RemoteException

{

  return "Done";  

}

}

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