Modification in string using Stringbuilder class in C#

String can be modified by using stringbuilder class. We can take an example for better understanding, suppose there are two string string11 and string2:

StringBuilder String1 = new StringBuilder("Hello");

StringBuilder String2 = new StringBuilder();

On above String1 is created with five characters 'Hello' and String is created as an empty string, we can modified these string dynamically such as we can append these string or add some string on it.so we can say that this class can be used when we want to modify a string without creating a new object. On here String1 and String2 can be also called by dynamic strings or mutable strings.



Methods:

Append

Appends information to the end of the current StringBuilder.

AppendFormat

Replaces a format specifier passed in a string with formatted text.

Insert

Inserts a string or object into the specified index of the current StringBuilder.

Remove

Removes a specified number of characters from the current StringBuilder.

Replace

Replaces a specified character at a specified index.


Example:

private void Example_StringBuilder()

{

StringBuilder String1 = new StringBuilder("beautiful");

StringBuilder String2 = new StringBuilder();

String2 = String1.Append(" Picture");

// value of String2="beautiful Picture"

String2 = String1.Remove(2, 4);

// value of String2="beful Picture"

String2 = String1.Insert(2, "auti");

// value of String2="beautiful Picture"

String2 = String1.Replace("beautiful", "Wonderful");

// value of String2="Wonderful Picture"

}