JDBC Connector class for java

connector.java

package com.jdbc;

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

public class connector {
  private static Connection conn=null;
	
	public static Connection getConnection(){
		if(conn==null)connect();
		return conn;
	}
	
	private static void connect(){
        try {
        	Class.forName("com.mysql.jdbc.Driver");
			conn = DriverManager.getConnection("jdbc:mysql://localhost/mysql?user=root&password=");
			System.out.println("connected");
		} catch (SQLException | ClassNotFoundException e) {
			e.printStackTrace();
			System.err.println("connection failed");
		}
	}
}