Operators in C#

We will explore the different operators in C# and perform some operations.

Arithmetic Operators #

Below are the arithmetic operators being supported in C#:

Here’s a sample program on how they are being used in C#:

class Program
{
    static void Main(string[] args)
    {
        int sum = 0, difference = 0, product = 0, modulo = 0;
        double quotient = 0;

        int x = 7, y = 2;

        sum = x + y;
        difference = x - y;
        product = x * y;
        quotient = x / y;
        modulo = 6 % y;

        Console.WriteLine("The sum is " + sum);
        Console.WriteLine("The difference is " + difference);
        Console.WriteLine("The product is " + product);
        Console.WriteLine("The quotient is " + quotient);
        Console.WriteLine("The module is " + modulo);

        x++;
        y--;

        Console.WriteLine("The value of x is " + x);
        Console.WriteLine("The value of y is " + y);
    }
}

Assignment Operators #

Assignment operators are used to assign values to variables.

Below are the common assignment operators used in C#:

Here’s a sample program on how they are being used in C#:

class Program
{
    static void Main(string[] args)
    {
        int points = 96; //assigning value to a variable
        Console.WriteLine("The value of points is " + points);
        
        int x = 1;
        x += 5;
        Console.WriteLine("The value of x is " + x);
    }
}

Relational Operators #

Relational operators are used for comparison purposes in conditional statements. Relational operators always result in a boolean statement (either true or false) but only compatible data types can be compared.

Below are the common relational operators in C#:

Here’s a sample program on how they are being used in C#:

class Program
{
    static void Main(string[] args)
    {
        bool balance = 2 == 2;
        Console.WriteLine("Balance is " + balance);

        bool voter = 8 < 18;
        Console.WriteLine("Are you a voter: " + voter);

        int sure = 1;
        Console.WriteLine("Are you sure? " + (sure != 0));
    }
}

Logical Operators #

Logical operators are used for logical calculations.

Below are the common logical operators being supported by C#:

The NOT operator is used to negate a boolean expression. && and || are used to combine comparisons.

Also down below is sample code on how these logical operators are being used in C#:

class Program
{
    static void Main(string[] args)
    {
        int age = 12;
        Console.WriteLine("Legal worker: " + (age < 18 && age >= 65));

        string father = "Wizard";
        string mother = "Muggle";
        bool wizard = father == "Wizard" || mother == "Wizard";
        Console.WriteLine("Are you a wizard? " + wizard);
    }
}

Other Operators and Operator Precedence #

Aside from already mentioned operators above, there are also other important operators in C#.

Below are the most common of them:

Just like in Mathematics, not all operators are created equal. A concept of “operator precedence” is also being applied in C#.

Consider the following example:

class Program 
{
    static void Main(string[] args) 
    {
        int a = 10, b = 5, c = 2;
        int result1 = a + b * c; // result1 = 20
        int result2 = (a + b) * c; // result2 = 30
        int result3 = a - b / c; // result3 = 8
        int result4 = (a - b) / c; // result4 = 2
        
        Console.WriteLine("Result1: " + result1);
        Console.WriteLine("Result2: " + result2);
        Console.WriteLine("Result3: " + result3);
        Console.WriteLine("Result4: " + result4);
    }
}

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References #

• Microsoft C# Documentation
• Visual Studio
• CSharpProgrraming