package com.premaseem;

/*

@author: Aseem Jain

@title: Design Patterns with Java 9

@link: https://premaseem.wordpress.com/category/computers/design-patterns/

@copyright: 2018 Packt Publication

*/

public class Client {

public static void main (String[] args) {

System.out.println("program to add number");

Integer sum = calculateSum();

System.out.println("total of all numbers is "+ sum);

}

private static Integer calculateSum () {

Integer sum = 0;

for (int i =0; i< 1000; i++){

Calculator calc = Calculator.getInstance();

sum = calc.add(sum,i);

}

return sum;

}

}