Overview
This tutorial shows how to use java arithmetic operators.
The Arithmetic Operators
Arithmetic operators are used in mathematical expressions in the same way that they are used in algebra. The following table lists the arithmetic operators −
Assume integer variable A holds 10 and variable B holds 20, then −
| Operator | Description | Example |
|---|---|---|
| + (Addition) | Adds values on either side of the operator. | A + B will give 30 |
| – (Subtraction) | Subtracts right-hand operand from left-hand operand. | A – B will give -10 |
| * (Multiplication) | Multiplies values on either side of the operator. | A * B will give 200 |
| / (Division) | Divides left-hand operand by right-hand operand. | B / A will give 2 |
| % (Modulus) | Divides left-hand operand by right-hand operand and returns remainder. | B % A will give 0 |
| ++ (Increment) | Increases the value of operand by 1. | B++ gives 21 |
| — (Decrement) | Decreases the value of operand by 1. | B– gives 19 |
Demo
public class ArithmeticOperatorDemo {
public static void main(String[] args) {
int a = 10;
int b = 20;
System.out.println("b+a=" + (b + a));
System.out.println("b-a=" + (b - a));
System.out.println("a*b=" + (a * b));
System.out.println("b/a=" + (b / a));
System.out.println("b%a=" + (b % a));
System.out.println("a++=" + (a++));
System.out.println("a--=" + (a--));
}
}
Result
