How to connect database from java jframe

//Md. Alamgir Hossain
//Dept. of Computer Science & Engineering
//Jessore University of Science & Technology

import java.sql.*;


import javax.swing.JOptionPane;

public class ConnectionClass
{
Connection conn = null;
public static Connection dbconnect()
{
    try {
      Class.forName("org.sqlite.JDBC");
      Connection conn = DriverManager.getConnection("jdbc:sqlite:F:\\New folder\\New folder\\JavaProgram\\SchoolMnagementSystem\\SchoolManagementSystem.sqlite");
      //JOptionPane.showMessageDialog(null, "Connected");
      return conn;
    } catch ( Exception e )
    {
      JOptionPane.showMessageDialog(null, e);
      return null;
    }
  }
}