#### Java / Operators

# Alternative to calculate modulo for power of 2 in Java.

Instead of modulo or reminder operator (%) in Java, we may use & bit wise AND operator if N is a power of 2.

For example, to calculate x % 2, since 2 is power of 1, we may use `x & 1`

. Similarly to calculate 5%4, use 5 & 3.

The formula is `x & n-1 `

given that n is power of 2.

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