Java, Check if integer is multiple of a number
How do I check if a Java integer is a multiple of another number? For example, if int j
is a multiple of 4.
Use the remainder operator (also known as the modulo operator) which returns the remainder of the division and check if it is zero:
if (j % 4 == 0) {
// j is an exact multiple of 4
}
If I understand correctly, you can use the module operator for this. For example, in Java (and a lot of other languages), you could do:
//j is a multiple of four if
j % 4 == 0
The module operator performs division and gives you the remainder.
Use modulo
whenever a number x is a multiple of some number y, then always x % y equal to 0, which can be used as a check. So use
if (j % 4 == 0)