String Split() Method in C#

In C#, Split() is a string class method used to divide a string into an array of substrings. The Split() method divides a string into an array of substrings using specified delimiters.

The delimiters can be:

• A character for example comma(,) or underscore(-).
• An array of characters char[] or an array of strings string[].

In simple words, it returns a string array that contains the substrings in the current instance that are delimited by elements of a specified string or Unicode character array.

Example: Separating a string based on space using String.Split() method.

Hello
from
GeeksforGeeks

Explanation: In the above example, we use the Split() method which converts the string into the string array based on a single space and then we print each string present in the array using the foreach loop.

Different Overloads of String.Split() Method

These are the six overloads of String.Split() method.

Parameters:

• separator: It is a character or a set of characters or an array of string[] that defines the points at which a string should be split into substrings
• options: RemoveEmptyEntries or None option to omit empty array elements from the array returned or None option to include empty array elements in the array returned.
• count: It defines the maximum number of substrings to return. If omitted, all possible substrings are returned.

Return Type: This method returns an array whose elements contain the substrings in this string which are delimited by one or more characters or an array of strings in the separator .

Exceptions:

• ArgumentOutOfRangeException: If the count is negative.
• ArgumentException: If the options are not one of the StringSplitsOptions values.

1. Split(String[], Int32, StringSplitOptions)

This method is used to split a string into a maximum number of substrings based on the strings in an array. We can specify whether the substrings include empty array elements or not.

Syntax:

public String[] Split(String[] separator, int count, StringSplitOptions options);

Example: Separate the string using the Split(String[], Int32, StringSplitOptions) method.

Geeks
 For Geeks

2. Split(Char[], Int32, StringSplitOptions)

This method is used to split a string into a maximum number of substrings based on the characters in an array passed on the argument and also we can pass the count of the maximum substring to return.

Syntax:

public String[] Split(char[] separator, int count, StringSplitOptions options);

Example:

Geeks
 For Geeks

3. Split(String[], StringSplitOptions)

This method is used to split a string into substrings based on the strings in an array. We can also specify whether the substrings include empty array elements or not.

Syntax:

public String[] Split(String[] separator, StringSplitOptions options);

Example:

Geeks
For
Geeks

4. Split(char[])

This method is used to split a string into a maximum number of substrings based on the characters in an array. We can also specify the maximum number of substrings to return.

Syntax:

public String[] Split(char[] separator);

Example:

Geeks
For
Geeks

5. Split(char[], StringSplitOptions )

This method splits a string into substrings based on the characters in an array passed as a separator. We can also specify whether empty array elements should be included or not using the second parameter StringSplitOptions.

Syntax:

public String[] Split(char[] separator, StringSplitOptions option);

Example:

Geeks
For
Geeks

6. Split(Char[], Int32)

This method is used to splits the string into a maximum number of substrings based on the characters in an array passed as a seperator. We can also specify the maximum number of substrings which we want to return.

Syntax:

public String[] Split(char[] separator, int count);

Example: