# 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 −

```#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