Operators in C#
Operators in C# allow you to perform various operations on variables and values, such as arithmetic, comparison, logical, and more. This guide introduces the different types of operators available in C# and provides examples to help you understand how to use them.
1. Types of Operators in C#​
C# supports various operators, which can be broadly categorized as follows:
- Arithmetic Operators
- Comparison Operators
- Logical Operators
- Assignment Operators
- Unary Operators
- Ternary Operator
2. Arithmetic Operators​
Arithmetic operators are used to perform basic mathematical operations.
| Operator | Description | Example |
|---|---|---|
+ | Addition | x + y |
- | Subtraction | x - y |
* | Multiplication | x * y |
/ | Division | x / y |
% | Modulus (Remainder) | x % y |
Example: ​
int a = 10, b = 5;
Console.WriteLine(a + b); // Output: 15
Console.WriteLine(a - b); // Output: 5
Console.WriteLine(a * b); // Output: 50
Console.WriteLine(a / b); // Output: 2
Console.WriteLine(a % b); // Output: 0
3. Comparison Operators​
Comparison operators are used to compare two values.
| Operator | Description | Example |
|---|---|---|
== | Equal to | x == y |
!= | Not equal to | x != y |
> | Greater than | x > y |
< | Less than | x < y |
>= | Greater than or equal | x >= y |
<= | Less than or equal | x <= y |
Example:​
int x = 10, y = 20;
Console.WriteLine(x == y); // Output: False
Console.WriteLine(x != y); // Output: True
Console.WriteLine(x > y); // Output: False
Console.WriteLine(x < y); // Output: True
4. Logical Operators​
Logical operators are used to combine multiple conditions.
| Operator | Description | Example |
|---|---|---|
&& | Logical AND | x && y |
| ` | ` | |
! | Logical NOT | !x |
Example:​
bool isAdult = true, hasID = false;
Console.WriteLine(isAdult && hasID); // Output: False
Console.WriteLine(isAdult || hasID); // Output: True
Console.WriteLine(!isAdult); // Output: False
5. Assignment Operators​
Assignment operators are used to assign values to variables.
| Operator | Description | Example |
|---|---|---|
= | Assign | x = 5 |
+= | Add and assign | x += 5 |
-= | Subtract and assign | x -= 5 |
*= | Multiply and assign | x *= 5 |
/= | Divide and assign | x /= 5 |
%= | Modulus and assign | x %= 5 |
Example:​
int num = 10;
num += 5; // num = 15
num -= 3; // num = 12
num *= 2; // num = 24
num /= 4; // num = 6
num %= 4; // num = 2
6. Unary Operators​
Unary operators work with a single operand.
| Operator | Description | Example |
|---|---|---|
+ | Unary plus | +x |
- | Unary minus | -x |
++ | Increment | x++ or ++x |
-- | Decrement | x-- or --x |
! | Logical NOT | !x |
Example:​
int value = 5;
Console.WriteLine(value++); // Output: 5, value becomes 6
Console.WriteLine(++value); // Output: 7
Console.WriteLine(-value); // Output: -7
7. Ternary Operator​
The ternary operator (? :) is a shorthand for an if-else condition.
Syntax:​
condition ? trueValue : falseValue;
Example:​
int age = 18;
string result = (age >= 18) ? "Adult" : "Minor";
Console.WriteLine(result); // Output: Adult
8. Conclusion​
Operators are fundamental to performing operations in C#. By using arithmetic, comparison, logical, and other operators effectively, you can manipulate and evaluate data in your programs with ease.