# C# - Arithmatic Operators

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

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

## Example

The following example demonstrates all the arithmetic operators available in C# −

```using System;

namespace OperatorsAppl {
class Program {
static void Main(string[] args) {
int a = 21;
int b = 10;
int c;

c = a + b;
Console.WriteLine("Line 1 - Value of c is {0}", c);

c = a - b;
Console.WriteLine("Line 2 - Value of c is {0}", c);

c = a * b;
Console.WriteLine("Line 3 - Value of c is {0}", c);

c = a / b;
Console.WriteLine("Line 4 - Value of c is {0}", c);

c = a % b;
Console.WriteLine("Line 5 - Value of c is {0}", c);

c = a++;
Console.WriteLine("Line 6 - Value of c is {0}", c);

c = a--;
Console.WriteLine("Line 7 - Value of c is {0}", c);
}
}
}
```

When the above code is compiled and executed, it produces the following result −

```Line 1 - Value of c is 31
Line 2 - Value of c is 11
Line 3 - Value of c is 210
Line 4 - Value of c is 2
Line 5 - Value of c is 1
Line 6 - Value of c is 22
Line 7 - Value of c is 20
```
csharp_operators.htm