My question. I understand the left of &&, but the right part confuses me. I understand this to mean one or both of these are true. In determining if a year is a leap year, the year must be divisible by 4 and NOT be divisible by 100 unless it is also divisible by 400. What is the result of year % 100? I know about modulo operator. Shouldn’t this be followed by a result like != 0 for it to be true?