Add two numbers using bitwise operators in kotlin

Kotlin program for Add two numbers using bitwise operators. Here problem description and explanation.

// Kotlin program for
// Add two numbers using of bitwise operators
class NumberAddition
{
	// Add two numbers
	fun addition(x: Int, y: Int): Unit
	{
      	var a = x;
      	var b = y;
		// Display given numbers
		print("\n [(" + a + ") + (" + b + ")] ");
		// Auxiliary variable which are store the carry bit result
		var carry: Int;
		// Executing loop, until b value is not zero
		while (b != 0)
		{
			// Get carry bits of a & b
			carry = a and b;
			// Sum of bits of a ^ b
			a = a xor b;
			// Shift the carry bit by one bit in left side
			b = carry shl 1;
		}
		// Display add result
		print(" : " + a);
	}
}
fun main(args: Array < String > ): Unit
{
	val task: NumberAddition = NumberAddition();
	// Test Case
	task.addition(8, -2);
	task.addition(5, 3);
	task.addition(-3, -5);
}

Output

 [(8) + (-2)]  : 6
 [(5) + (3)]  : 8
 [(-3) + (-5)]  : -8



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