d

```
package com.thealgorithms.maths;
public class SumWithoutArithmeticOperators {
/**
* Calculate the sum of two numbers a and b without using any arithmetic operators (+, -, *, /).
* All the integers associated are unsigned 32-bit integers
*https://stackoverflow.com/questions/365522/what-is-the-best-way-to-add-two-numbers-without-using-the-operator
*@param a - It is the first number
*@param b - It is the second number
*@return returns an integer which is the sum of the first and second number
*/
public int getSum(int a, int b) {
if (b == 0) return a;
int sum = a ^ b;
int carry = (a & b) << 1;
return getSum(sum, carry);
}
}
```