Creating MYSQL Database Connection Using Java Servlet

Creating MYSQL Database Connection Using Java Servlet.java

package examadmin;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class ExamConnection 
{
	private static Connection con = null;
	ExamConnection() 
	{
		
	}
	
	private static void createConnection()
	{
		try
		{
			Class.forName("com.mysql.jdbc.Driver");
			String url="jdbc:mysql://172.16.59.202/test";
			con=DriverManager.getConnection(url,"root","root");
			System.out.println("connection created");			
		}
		catch(SQLException e)
		{
			e.printStackTrace();
		}
		catch(ClassNotFoundException e)
		{
			e.printStackTrace();
			System.out.println("ClassNotFoundException"+e);
		}
	}
	
	public static Connection getConnection() 
	{
		if(con == null) 
		{
			createConnection();
		}
		return con; 
	}
	
	public static void main(String[] argv) 
	{
		Connection con1 = ExamConnection.getConnection();
		System.out.println(con1);
	}
}