Arithmetic Operators

Unary operators have just one operand (-3, +3.4); we rarely use the unary plus
Binary operators have two operands (x + y, 5 / 4)
When dividing integers, the fractional part is discarded (truncated); so 10 / 3 is 3 not 10.3333… or 10 and 1/3
Modulus is the remainder from integer division; both operands must be of integral type (char, int, or long); so 10 % 3 is 1 (10 / 3 is 3 with remainder 1)
There is no division by 0 in computers. Doing so will TERMINATE YOUR PROGRAM IMMEDIATELY.