Java provides many types of operators which can be used according to the need. They're classified based mostly on the functionality they supply. Let’s check out them in detail. 1. Arithmetic Operators: They are used to carry out easy arithmetic operations on primitive data varieties. 2. Unary Operators: Unary operators want just one operand. They are used to increment, decrement or negate a value. Unary minus, used for negating the values.