Arithmetic Operators

C programming language supports almost common arithmetic operator such as +,-,* and modulus operator %. Modulus operator (%) returns the remainder of integer division calculation. The operators have precedence rules which are the same rule in math.

Here is a C program demonstrate arithmetic operators:

01	#include <stdio.h>

02	/* a program demonstrates C arithmetic operators */

03	void main(){

04	int x = 10, y = 20;

05

06	printf("x = %d\n",x);

07	printf("y = %d\n",y);

08	/* demonstrate = operator + */

09	y = y + x;

10	printf("y = y + x; y = %d\n",y);

11

12	/* demonstrate - operator */

13	y = y - 2;

14	printf("y = y - 2; y = %d\n",y);

15	/* demonstrate * operator */

16	y = y * 5;

17	printf("y = y * 5; y = %d\n",y);

18

19	/* demonstrate / operator */

20	y = y / 5;

21	printf("y = y / 5; y = %d\n",y);

22

23	/* demonstrate modulus operator % */

24	int remainder = 0;

25	remainder = y %3;

26

27	printf("remainder = y %% 3; remainder = %d\n",remainder);

28

29	/* keep console screen until a key stroke */

30

char key;

31	scanf(&key);

32

}

And here is the output

x = 10
y = 20
 x; y = 30
y = y 
y = y 
+- 2; y = 28
= 140
y = y / 5; y
y = y * 5; y
  = 28
er = y % 3; remainder = 1
remain
d

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