This course introduces the basics of C# programming. It is an ideal resource for beginners aiming to become C# developers.

csharp.tar.gz

C_sharp

C# is a versatile and robust language, ideal for developing software applications from games to enterprise solutions. This course introduces C sharp fundamentals, starting with writing your first program and understanding core concepts. You'll progress to more complex topics like loops, string and array manipulation, and mastering best practices for code organization.
By the end, you'll be well-prepared to pursue opportunities as a C# developer in industries like gaming and finance, equipped to create high-performance applications across platforms.

Learn C#

# Built-in functions for strings
C# provides various built-in functions for dealing with strings. These functions are collectively called **string methods**.




> **Note:** All string methods return a new string without changing the original one.

There are numerous tasks related to strings that make it easy for programmers to perform routine tasks. This section will provide examples and results of some commonly used string methods.

## The methods related to case change
These methods change the letter case of the text stored in a string (say, from lowercase to uppercase). Let’s use an example program to explore case changes.

* The `ToLower()` method converts _all_ characters in a string to lowercase.
* The `ToUpper()` method converts _all_ characters in a string to uppercase.


class Test
{
    static void Main()
    {
        System.Console.WriteLine("EDUCATIVE".ToLower());
        System.Console.WriteLine("educative".ToUpper());
    }
}

## The search-related functions
These functions search for the occurrence of text in a string. Let’s use an example program to explore searches.

* The `Compare()` compares two strings and return $0$ if both strings are equal.
* The `EndsWith()` checks whether the specified character is the last character of the string or not and returns `True` or `False`.

* The `Contains()` searches for character or a substring in the string and returns `True` or `False`.

* The `Replace()` searches for _all_ occurrences of a text in the string, replaces it with different text, and returns the new string after replacement.

* The `IndexOf()` returns the position of the first occurrence of the specified character in the string.

* The `StartsWith()` checks for text at the _start_ of a string and returns `True` or `False`.


Learn to use popular built-in functions related to strings and arrays in C#.


Built-in String and Array Functions

Learn to use popular built-in functions related to strings and arrays in C#.

About the Course

C# Basics

Loops in C#

C# Arrays and Strings

C# Functions

Wrap Up

Built-in String and Array Functions

Built-in functions for strings

The methods related to case change

The search-related functions