How to Convert Char Array to Strings in C#

1. Use the string() Method to Convert Char Array to String in C#
2. Use the string.Join() Method to Convert Char Array to String in C#
3. Use the string.Concat() Method to Convert Char Array to String in C#

This guide will discuss how to convert a char array to a string in C#.

The values printed in character array will be as a single character, and there are three ways to make them a string.

The following are the ways to convert the char array to string in C#

Use the string() Method to Convert Char Array to String in C#

The string constructor is the first method you can use to convert a char array to a string in C#. The string() is a class constructor that combines the characters to form a string. It uses a character array as its parameter.

Code:

char[] fav = { 'M', 'y', ' ', 'f', 'a', 'v', ' ', 'c', 'o', 'l',
               'o', 'r', ' ', 'i', 's', ' ', 'r', 'e', 'd' };
string favColor = new string(fav);  // this is the constructor
Console.WriteLine(favColor);

Output:

My fav color is red

This is one of C #’s most common methods to convert char array to string.

Use the string.Join() Method to Convert Char Array to String in C#

The string.Join() is used to join the characters in a string formation. It needs two values as its parameter.

The first is a separator, which uses an empty string or space. The char array is used as the second parameter.

Code:

char[] fav = { 'M', 'y', ' ', 'f', 'a', 'v', ' ', 'c', 'o', 'l',
               'o', 'r', ' ', 'i', 's', ' ', 'r', 'e', 'd' };
string favColor = string.Join(" ", fav);  // this is the use of string.join()
Console.WriteLine(favColor);

Output:

M y   f a v   c o l o r   i s   r e d

This method uses a stringBuilder() class internally, which is more efficient than the other methods.

Use the string.Concat() Method to Convert Char Array to String in C#

The string.Concat() method is a combination of the above two methods. Even though it’s a combination, this method is still different from the other two methods mentioned as it needs only one parameter, and the second method, string.Join(), has stringBuilder(), but this method works like a string constructor.

Also, this method concats the characters into a string instead of joining them.

Code:

char[] fav = { 'M', 'y', ' ', 'f', 'a', 'v', ' ', 'c', 'o', 'l',
               'o', 'r', ' ', 'i', 's', ' ', 'r', 'e', 'd' };
string favColor = string.Concat(fav);  // this is the use of string.concat()
Console.WriteLine(favColor);

Output:

My fav color is red