Explore

Java Programming Fundamentals

Operators In Java

Understanding Operators, Operands, and Expressions

Operators

Special symbols that perform operations on operands (e.g., + in 5 + 3).

Operands

Entities on which operators act (e.g., 5 and 3 in 5 + 3).

Expressions

Combinations of operators and operands that produce a result (e.g., a + b - c).

⁠

Key Operators in Java

Arithmetic Operators

Perform basic math operations: +, -, *, /, %.

Assignment Operators

Assign values to variables: =, +=, -=, etc.

Unary Operators

Operate on a single operand: ++, --.

Comparison Operators

Compare two values: ==, !=, >, <.

Logical Operators

Combine boolean expressions: &&, ||, !.

Bitwise Operators

Operate on binary representations: &, |, ^, ~.

⁠

Arithmetic, Assignment, and Unary Operators

Addition and Subtraction

int addResult = num1 + num2;

int subResult = num1 - num2;

Modulus Operator

int modResult = num1 % num2;

Assignment Operators

x += y; // x = x + y

x -= y; // x = x - y

Unary Operators

count++; // Increment

--count; // Decrement

⁠

Comparison and Logical Operators

Comparison Operators

x > y; // Greater than

x == y; // Equal to

x != y; // Not equal to

Logical Operators

x < 5 && x > 2; // Logical AND

x < 5 || x > 2; // Logical OR

!(x == y); // Logical NOT

⁠

Bitwise Operators

Bitwise AND (&)

int c = a & b; // Binary: 0101 & 0011 = 0001

Bitwise OR (|)

int c = a | b; // Binary: 0101 | 0011 = 0111

Bitwise XOR (^)

int c = a ^ b; // Binary: 0101 ^ 0011 = 0110

Bitwise NOT (~)

int d = ~a; // Binary: ~0101 = 1010 (two's complement)

Bitwise Left Shift (<<)

int b = a << 1; // Binary: 0101 << 1 = 1010

Bitwise Right Shift (>>)

int b = a >> 1; // Binary: 0101 >> 1 = 0010

⁠

Operator Precedence

Operator precedence determines the order in which operators are evaluated in an expression, similar to BODMAS in mathematics.

Example

int result = 20 - 3 * 2 + 8 / 2; // Evaluates to 18

Multiplication and division first: 3 * 2 = 6, 8 / 2 = 4

Then addition and subtraction: 20 - 6 + 4 = 18

These concepts of Operators In Java are very useful for understanding core Java. For more detailed information, refer to the Notion link:

Operators In Java⁠

⁠

Want to print your doc?
This is not the way.

Try clicking the ⋯ next to your doc name or using a keyboard shortcut (

CtrlP

) instead.