public int addtwo(int a,int b) { if(b==0) return a; int sum = a ^ b;

How to add two numbers with out using Arithmetic , union
operators in java....?

But we can use bitwise operators... but how...?

Question Posted / midhula

4 Answers
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Answer Posted / midhula

public int addtwo(int a,int b)
{
if(b==0)
return a;

int sum = a ^ b; // ^ will be 1 if both operands are
//different otherwise 0.
int carry = (a & b) <<1; //& will be 1 if both operands are
//1 otherwise 0

return addtwo(sum,carry);
}

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