Operators

 

Define Operators in java

In Java, the term operator refers to a special symbol (or keyword) that performs an operation on one, two, or three operands and returns a result.

Definition

An operator in Java is a symbol that tells the compiler to perform a specific mathematical, logical, or relational operation on data (operands).

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Categories of Operators in Java

1. Arithmetic Operators

Used for basic math operations.

• + (addition)
• - (subtraction)
• * (multiplication)
• / (division)
• % (modulus)

2. Unary Operators

Operate on a single operand.

• ++ (increment)
• -- (decrement)
• ! (logical NOT)
• + (unary plus)
• - (unary minus)

3. Relational (Comparison) Operators

Compare two values and return true or false.

• ==
• !=
• >
• <
• >=
• <=

4. Logical Operators

Used for boolean logic.

• && (logical AND)
• || (logical OR)
• ! (logical NOT)

5. Bitwise Operators

Perform operations on bits.

• &, |, ^, ~, <<, >>, >>>

6. Assignment Operators

Assign values to variables.

• =
• +=, -=, *=, /=, %= etc.

7. Ternary Operator

The only operator that takes three operands.

• ? : (conditional operator)

8. Instanceof Operator

Checks if an object is an instance of a class.

• instanceof

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Example

int a = 10, b = 5;
int sum = a + b;  // '+' is an operator
boolean result = a > b; // '>' is an operator