What does the ^ operator do in Java? (7 words)

[madhurima_sil]

Checking if a Number is a Power of Two A neat way to check if a number is a power of 2 using XOR is:

boolean isPowerOfTwo(int n) { return (n > 0) && ((n & (n - 1)) == 0); } This works because powers of two have only one bit set in their binary representation.