Validate.java

import java.sql.*;

public class Validate {
    public static boolean checkUser(String username,String password)  
    {
        boolean st = false;
        try {

            //loading drivers for mysql
            Class.forName("com.mysql.jdbc.Driver");

            //creating connection with the database
            Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/exampledb","root","demoLogin");
            PreparedStatement ps = con.prepareStatement("select * from login1 where username=? and password=?");
            ps.setString(1, username);
            ps.setString(2, password);
            ResultSet rs =ps.executeQuery();
            st = rs.next();
            return st;  

        }
        catch(Exception e) {
            e.printStackTrace();
            return !st;  
        }
       // return st;                 
    }   
}