L025 | Operators and its Forms (UNARY, BINARY, TERNARY) in Java

1. What are Operators?

Definition

An operator is a special symbol in Java that is used to perform operations on variables and values.

• Operators manipulate data and produce a result.
• They form the building blocks of expressions in Java.

Example:

int a = 5, b = 3;
int sum = a + b; // '+' is the addition operator

Here:

• a and b are operands (values on which operations are performed).
• + is the operator.
• sum stores the result of the operation.

2. Role of Operators in Expressions

• Operators combine operands to form expressions.
• An expression is something that produces a value when evaluated.

Example:

int result = (10 + 5) * 2;

Here:

• (10 + 5) is an expression producing 15.
• 2 multiplies that result to get 30.