This week's book giveaway is in the Big Data forum. We're giving away four copies of Elasticsearch in Action and have Radu Gheorghe & Matthew Lee Hinman on-line! See this thread for details.

The % operator (remainder/mod operator) return the remainder of the expression by dividing the first number with the second number.
If the first number is 0 (e.g. 0 % 5) the result is always 0. Why does this not return an ArithmeticException?