Java operators Tutorial

Java Operators Tutorial.

Java Operators:

In Java their are serveral types of numerator

Arithmetic operators
Comparison operators
Increment and decrement operators
Logical operators
Bitwise and Shift operators

1. Java Arithmetic operators

Java contains five simple aritmethic operators, the below table display each numerator and how they are used in java.

numerator	Use	Description
+	num1 + num2	Adds num1 and num2
-	num1 - num2	Subtracts num2 from num1
*	num1 * num2	Multiplies num1 by num2
/	num1 / num2	Divides num1 by num2
%	num1 % num2	computes the remainder of dividing num1 by num2
+	+num	Promotes + to int if its a byte,short or char
-	-num	Arithmetically negates num
++	num++	Increments num by 1; evaluates to value before incrementing
++	++num	Increments num by 1; evaluates to value after incrementing
--	--num	Decrements num by 1; evaluates to value before decrementing
--	num--	Decrements num by 1; evaluates to value after decrementing

Examples:


public class sampleOperators{
	public static void main(String[] args) {
	
	int numA = 5;
	int numB = 3;
	
	double numC = 10.5;
	double numD = 20.5;
	
	//adding numbers
	System.out.println(" numA + numB = " + (numA + numB));

	//subtracting numbers
	System.out.println(" numA - numB = " + (numA - numB));

	//multiplying numbers
	System.out.println(" numC* numD = " + (numC * numD));

	//dividing numbers
	System.out.println(" numD / numC = " + (numD / numC));

	//computing the remainder resulting Modulus
	System.out.println(" 7 % 3 = " + (7 % 3));

	}

}

The output from the above examples would be:

	//adding numbers
	8

	//subtracting numbers
	2

	//multiplying numbers
	215.25

	//dividing numbers
	1.95

	//computing the remainder resulting Modulus
	1 - as it the remainder after deviding 7 by 2.