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.
C# // C# program to illustrate the // String.Split() Method using System; class Geeks { public static void Main() { // declaring the string String str = "Hello from GeeksforGeeks"; // Splitting the string // into substrings separated by spaces string[] split = str.Split(' '); foreach (var word in split) { Console.WriteLine(word); } } } OutputHello 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.
| Methods | Description |
|---|
| Split(String[], Int32, StringSplitOptions) | Split string into a maximum number of sub-strings based on the array of strings passed as parameters. We can specify whether to include the empty array elements in an array of substrings or not. |
|---|
| Split(Char[], Int32, StringSplitOptions) | Split string into a maximum number of sub-strings based on the array of characters passed as a parameter. We can specify whether to include the empty array elements in an array of substrings or not. |
|---|
| Split(String[], StringSplitOptions) | Splits a string into substrings based on the array of strings. We can specify whether to include the empty array elements in an array of substrings or not. |
|---|
| Split(Char[]) | Splits a string into substrings based on the array of characters. |
|---|
| Split(Char[], StringSplitOptions) | Splits a string into substrings based on the array of characters. We can specify whether to include the empty array elements in an array of substrings or not. |
|---|
| Split(Char[], Int32) | Split string into a maximum number of sub-strings based on the array of characters passed as a parameter. We can specify a maximum number of sub-strings to return. |
|---|
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.
C# // C# program to illustrate Split(String[], Int32, StringSplitOptions) using System; class Geeks { static void Main(string[] args) { // Declaring the string string s = "Geeks, For Geeks"; // String array of separators string[] sp = { ",", "For" }; // Count of substrings to be returned int c = 2; // Splitting the string string[] strlist = s.Split(sp, c, StringSplitOptions.RemoveEmptyEntries); // Displaying the substrings foreach(string str in strlist) { Console.WriteLine(str); } } }
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:
C# // C# program to illustrate the // Split(Char[], Int32, // StringSplitOptions) Method using System; class Geeks { static void Main(string[] args) { // Taking a string String str = "Geeks, For Geeks"; // Array of spliters char[] sp = { ',', ' ' }; // Count of substrings // to be returned Int32 c = 2; // Using the split method // with StringSplitOptions.None String[] list = str.Split(sp, c, StringSplitOptions.None); foreach(String s in list) Console.WriteLine(s); } }
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:
C# // C# program to illustrate the // Split(String[], StringSplitOptions) Method using System; class Geeks { static void Main(string[] args) { // Declaring and initializing the string String str = "Geeks,For Geeks"; // Array of separators String[] sp = { ",", " " }; // Splitting the string String[] list = str.Split(sp, StringSplitOptions.None); foreach(String s in list) { Console.WriteLine(s); } } }
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:
C# // C# program to illustrate the // Split(Char[]) Method using System; class Geeks { static void Main(string[] args) { // Declaring and initializing the string String str = "Geeks,For Geeks"; // Character array of separator // to split the string char[] separator = { ',', ' ' }; // Using the split method String[] strlist = str.Split(separator); foreach(String s in strlist) { Console.WriteLine(s); } } }
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:
C# // C# program to illustrate the use of // Split(Char[], StringSplitOptions) method using System; class Geeks { static void Main(string[] args) { String s = "Geeks, For Geeks"; // Character array as // As a separator char[] sp = { ',', ' ' }; // Using the method String[] list = s.Split(sp, StringSplitOptions.RemoveEmptyEntries); foreach(String i in list) { Console.WriteLine(i); } } }
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.
public String[] Split(char[] separator, int count);
Example:
C# // C# program to illustrate Split(Char[], Int32) using System; class Geeks { static void Main(string[] args) { // Declaring and initializing the string string s = "Geeks,For Geeks"; // Character array of separators char[] sp = { ',', ' ' }; // Using the split method string[] list = s.Split(sp, 3); foreach(string i in list) { Console.WriteLine(i); } } } Similar Reads
C# | Substring() Method
In C#, Substring() is a string method. It is used to retrieve a substring from the current instance of the string. This method can be overloaded by passing the different number of parameters to it as follows: String.Substring(Int32) Method String.Substring(Int32, Int32) Method String.Substring Metho
3 min read
C# String Remove() Method
In C#, the Remove() method of the String class is used for removing the characters from the specified position of a string. If the length is not specified, then it will remove all the characters after the specified position. This method can be overloaded by changing the number of arguments passed to
3 min read
C# | TrimStart() and TrimEnd() Method
Prerequisite: Trim() Method in C# In C#, TrimStart() & TrimEnd() are the string methods. TrimStart() method is used to remove the occurrences of a set of characters specified in an array from the starting of the current String object. TrimEnd() method is used to remove the occurrences of a set o
3 min read
C# | ToCharArray() Method
In C#, ToCharArray() is a string method. This method is used to copy the characters from a specified string in the current instance to a Unicode character array or the characters of a specified substring in the current instance to a Unicode character array. This method can be overloaded by changing
4 min read
C# Program For Counting Lines in a String
In C#, a string is a sequence of Unicode characters or an array of characters. The range of Unicode characters will be U+0000 to U+FFFF. A string is the representation of the text. In this article, we will create a C# program that will count the lines present in the given string. Example: Input : he
6 min read
C# StringBuilder
StringBuilder is a Dynamic Object. It doesn’t create a new object in the memory but dynamically expands the needed memory to accommodate the modified or new string.A String object is immutable, i.e. a String cannot be changed once created. To avoid string replacing, appending, removing or inserting
4 min read
C# - Different Ways to Find All Substrings in a String
Given a string as an input we need to find all the substrings present in the given string. Example: Input: geeks Output: g e e k s ge ee ek ks gee eek eks geek eeks geeks Input: ab Output: a b abMethod 1: Using Substring() method We can find all the substrings from the given string using the Substri
3 min read
C# | Char.IsSeparator ( ) Method
In C#, Char.IsSeparator() is a System.Char struct method which is used to check whether a Unicode character can be categorized as a separator character or not. This method can be overloaded by passing different type and number of arguments to it. Char.IsSeparator(Char) MethodChar.IsSeparator(String,
3 min read
How to Split a String by a Delimiter in C?
Splitting a string by a delimiter is a common task in programming. In C, strings are arrays of characters, and there are several ways to split them based on a delimiter. In this article, we will explore different methods to split a string by a delimiter in C. Splitting Strings in CThe strtok() metho
2 min read
Convert String to int in C
In C, we cannot directly perform numeric operations on a string representing a numeric value. We first need to convert the string to the integer type. In this article, we will discuss different ways to convert the numeric string to integer in C language. Example: Input: "1234"Output: 1234Explanation
6 min read