Arithmetic operators in java

Sandipan Kr Bag Apr 28, 2024

Arithmetic Operators :

You must be friendly arithmetic expressions in mathematics like A-B. In this expression A and B are Operands and the subtraction sign - is the operator. The same terminology is also used here in the programming language.

Type of Arithmetical Operators :

Binary Arithmetical Operators
Unary Arithmetical Operators

Binary Arithmetical Operators :

Operation	Operator (Symbol)	Syntax	Result if a= 22, b=5
Addition	+	a+b	27
Subtraction	-	a-b	17
Multiplication	*	a*b	110
Division	/	a/b	4
Modulus/Remainder	%	a%b	2

Unary Arithmetical Operators :

Operator	Use	Description
++ Post - increment	A++	Post-increment: The value is assigned before the increment is made , e.g. A=1 B=A++ Then B will hold 1 and A will Hold 2
– Post-Increment	A--	Post-decrement: The value is assigned before the decrement is made , e.g. : A=1; B=A--; Then B will hold 1 and A will hold 0.
++ pre-Increment	++A	Pre-Increment: The value is assigned after the increment is made. e.g : A=1; B=++A; Then B will hold 2 and A will hold 2.
– pre-decrement	--A	Pre-decrement: the value is assigned after the decrement is made, e.g: A=1; B=--A; Then B will hold 0 and will hold 0.

Solved Example :

int a=7,b=5;c;

c = ++a*4+b++;

System.out.println(c);

Ans: 37

int x=5; y=4; z ;

z = x*y++ + ++x/y;

System.out.println(z);

Ans :21

int p=6,q=15, r;

r = (p*q) + p/q;

System.out.println(r);

Ans :10

int a=5, b=10,

a = a+b++ + --b+b

System.out.println(a);

Ans :35

int m = 10, n=12, p;

p = (m++ *n++)+ --n/2;

System.out.println(p);

Ans :126

Order of precedence :

In Java, as in many programming languages, expressions within parentheses are evaluated first, followed by multiplication (*), division (/), and modulus (%) operators, and then addition (+) and subtraction (-) operators.

→ ()
→ * , % , /
→ + , -

Example :

10+20/5-3*2

5*(10+5)+10-5

(6 + 2) * 3 - 5

10 - 3 * (5 + 2)

4 * (7 - 3) / 2 + 5

(10 + 4) / (7 - 2) * 3

8 * (6 + 2) - 4 / 2

6 - (3 * 2 + 4) / 2

(10 + 4) / (7 - 2) * 3

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Sandipan Kr Bag

I'm a dedicated full-stack developer, entrepreneur, and the proud owner of ocec.org.in , hailing from the vibrant country of India. My passion lies in creating informative tutorials and sharing valuable tips that empower fellow artisans in their journey. With a deep-rooted love for technology, I've been an ardent enthusiast of PHP, Laravel, Angular, Vue, Node, JavaScript, jQuery, Codeigniter, and Bootstrap from their earliest days. My philosophy revolves around the values of hard work and unwavering consistency, driving me to continuously explore, create, and share my knowledge with the tech community.

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