JavaDbConnection

 import java.sql.*;
import javax.swing.*;

public class JavaDbConnection {


    private static Connection connection = null;

    public static Connection dbConnect() {
        try {
          //  Class.forName("org.sqlite.JDBC");
            Class.forName("com.mysql.jdbc.Driver");

              System.out.println("Connected");

           //   connection=DriverManager.getConnection("jdbc:mysql://localhost:3306/school_management_project?zeroDateTimeBehavior=convertToNull","root","");

            connection=DriverManager.getConnection("jdbc:mysql://localhost:3306/maa_coaching_center?zeroDateTimeBehavior=convertToNull","root","");

            //JOptionPane.showMessageDialog(null,"Connected");

//  connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/maa_coaching_center?zeroDateTimeBehavior=convertToNull");
            //Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/hospital_management","root","");
            //JOptionPane.showMessageDialog(null, "Connection established!");
            return connection;
        } catch (Exception  e) {
            JOptionPane.showMessageDialog(null, "Not Connected");
            return null;
        }
    }
}