Mathematical operations are used everywhere whether to calculate a company's payroll or the employees' number. The structure of an operation is composed of operands and operators and usually The result is assigned to variables. the statement below is an example of an operation.

** int a = 1 + 2; **

**1**and**2**are the**operands****The sign +**is the**Addition operator**.**The sign =**is the**Assignment operator**

Java supports other operators for different purposes :

**Relational and equality operators****Logical operators****Ternary operators****Unary operators****Binary operators**

We'll see each one in the next sections .