Operators

Operators are used to perform some operations between operands.

int  a = 2 , b = 3;
System.out.println(a+b);OUTPUT:
5

Below are the different types of operators

• Arithmetic operators
• Assignment operators
• Comparison operators
• Logical operators
• Bitwise operators

Assignment Operator:

Assignment operator are used to assign value to a variable. = (equal) symbol is use as an assignment operator.

In the below code value 3 is assigned to a with the assignment operator.

int a = 3;

Comparisons Operator:

It uses to compare two operands.

Bitwise Operator:

Bitwise operators are used to perform operation on bits of a number. This can be applied to the integer types, long, int, short, char, and byte. We have four types of bitwise operations:

1. Bitwise AND (&)
2. Bitwise OR (|)
3. Bitwise XOR (^)
4. Bitwise Complement (~)

Bitwise AND (&) Operator:

Bitwise operator can be easily understood by below table:

Example:

What will the output for bitwise operation of (5 & 9)

Bitwise OR (|) Operator:

Bitwise operator can be easily understood by below table:

Example:

What will the output for bitwise operation of (5 | 9)

Bitwise XOR (^) Operator:

Bitwise operator can be easily understood by below table:

Example:

What will the output for bitwise operation of (5 ^ 9)

Bitwise Complement:

Bitwise operator can be easily understood by below table:

Example:

What will the output for bitwise operation of (~5)

Note: Compiler gives 2’s complement of number. 2’s compliment of 10 is -6.

Logical Operator:

Logical operator also called as a Boolean operator as it returns true or false after comparison.