Arithmetic Operators in Objective-C

Following table shows all the arithmetic operators supported by Objective-C language. Assume variable A holds 10 and variable B holds 20, then −

Operator	Description	Example
+	Adds two operands	A + B will give 30
-	Subtracts second operand from the first	A - B will give -10
*	Multiplies both operands	A * B will give 200
/	Divides numerator by denominator	B / A will give 2
%	Modulus Operator and remainder of after an integer division	B % A will give 0
++	Increment operator increases integer value by one	A++ will give 11
--	Decrement operator decreases integer value by one	A-- will give 9

Example

Try the following example to understand all the arithmetic operators available in Objective-C programming language −

Live Demo

#import <Foundation/Foundation.h>

int main() {
   int a = 21;
   int b = 10;
   int c ;

   c = a + b;
   NSLog(@"Line 1 - Value of c is %d\n", c );
   c = a - b;
   NSLog(@"Line 2 - Value of c is %d\n", c );
   c = a * b;
   NSLog(@"Line 3 - Value of c is %d\n", c );
   c = a / b;
   NSLog(@"Line 4 - Value of c is %d\n", c );
   c = a % b;
   NSLog(@"Line 5 - Value of c is %d\n", c );
   c = a++; 
   NSLog(@"Line 6 - Value of c is %d\n", c );
   c = a--; 
   NSLog(@"Line 7 - Value of c is %d\n", c );
}

When you compile and execute the above program, it produces the following result −

2013-09-07 22:10:27.005 demo[25774] Line 1 - Value of c is 31
2013-09-07 22:10:27.005 demo[25774] Line 2 - Value of c is 11
2013-09-07 22:10:27.005 demo[25774] Line 3 - Value of c is 210
2013-09-07 22:10:27.005 demo[25774] Line 4 - Value of c is 2
2013-09-07 22:10:27.005 demo[25774] Line 5 - Value of c is 1
2013-09-07 22:10:27.005 demo[25774] Line 6 - Value of c is 21
2013-09-07 22:10:27.005 demo[25774] Line 7 - Value of c is 22

objective_c_operators.htm