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C# Operators

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C# Operators

Operators are special symbols used to perform operations on variables and values. Whether you are doing math, comparing numbers, or combining logic, operators are the engine behind it all.

C# divides operators into several groups:

1. Arithmetic Operators

Arithmetic operators perform common mathematical operations.

Operator Name Description Example
+ Addition Adds together two values x + y
- Subtraction Subtracts one value from another x - y
* Multiplication Multiplies two values x * y
/ Division Divides one value by another x / y
% Modulus Returns the remainder of division x % y
++ Increment Increases the value of a variable by 1 x++
-- Decrement Decreases the value of a variable by 1 x--

2. Assignment Operators

Assignment operators are used to assign values to variables. The most common is the equal sign (=). You can also combine assignment with math operators to write shorter code.

int x = 10;
x += 5; // This is the exact same as writing: x = x + 5;

3. Comparison Operators

Comparison operators are used to compare two values. They always return a boolean value (true or false), which is extremely important for making decisions in your code (like if statements).

Operator Name Example
== Equal to x == y
!= Not equal x != y
> Greater than x > y
< Less than x < y
>= Greater than or equal to x >= y
<= Less than or equal to x <= y

4. Logical Operators

Logical operators are used to determine the logic between variables or values. They also evaluate to boolean results.

Operators Example

using System;


class Program {
  static void Main() {
    int x = 5;
    Console.WriteLine(x > 3 && x < 10); // True, because 5 is greater than 3 AND less than 10
  }
}

Exercise

?

Which operator is used to compare if two values are equal?

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