How to remove the first n characters of a string in C#

Learn, how can you remove the first n characters from a string in C#.

Consider, we have the following string.

string fruit = "apple";

Now, we want to remove the first 3 characters app from the above string.

Note: In C#, strings are the sequence of characters that can be accessed by using its character index, where the first character index is 0, second character is 1 and the last character index is string.Length-1.

Removing the first n characters

To remove the n first characters of a string, we can use the built-in Remove() method by passing the 0,n as an arguments to it.

0 is the start index.

n is the number of characters we need to remove from the beginning of a string.

Here is an example, that removes the first 3 characters from a fruit string:

using System;
class RemoveCharacters {
  static void Main() {
    string fruit = "apple";
    string result = fruit.Remove(0, 3);
    Console.WriteLine(result);
  }
}

Output:

"le"

In the example above, we have passed the 0, 3 as an arguments to the Remove() method. So it starts removing 3 characters from the index position 0 and returns the remaining part of a string.

Similarly, we can also use the Substring() method in C# to remove the first n characters of a string.

using System;
class RemoveCharacters {
  static void Main() {
    string fruit = "apple";
    string result = fruit.Substring(3);
    Console.WriteLine(result);
  }
}

Note: The String.Remove(), Substring() methods returns a new string with the specified characters instead of modifying the original string.