Conexion a la base de datos con MYSQL en JAVA

Conexión a la base de datos con MYSQL en JAVA
========================================

public class ConexionDB {

   private static final String DRIVER = "com.mysql.cj.jdbc.Driver";
   private static final String DB = "dbtest";
   private static final String URL = "jdbc:mysql://localhost:3306/";
   private static final String USER = "root";
   private static final String PASSWORD = "";

   public static Connection getConnection() {
        Connection conn = null;
        try {
            Class.forName(DRIVER);
            conn = DriverManager.getConnection(URL + DB, USER, PASSWORD);

            System.out.println("Successful Connection! ");

        } catch (ClassNotFoundException e) {
          System.out.println("Driver not found for database");
        } catch (SQLException e) {
          System.out.println("Failed Connection!" + e.getMessage());

        }
        return conn;
    }
}