Name
String
Synopsis
This class consists of an immutable
array of Char
characters and built-in helper functions. Methods that appear to
modify a string, such as Concat( ), actually
create and return a new String object. To modify a
string directly, use the System.Text.StringBuilder
class. This can enhance performance in some routines that make
intensive use of string-manipulation operations. In C#,
String is aliased as string.
A string is slightly unusual because it is a reference type that
behaves like a value type for comparison and assignment operations.
Two String objects with the same content but
different locations in memory return true when
tested for equality. Also, assigning one String to
another clones the string itself, rather than just duplicating the
reference.
On the other hand, a String is a fully featured
object with a Length property and a wide variety
of methods for the following: padding or trimming specified
characters on either side, converting case, performing inline
substitutions (with Replace( )), and dividing a
string into an array of strings (with Split( )).
There’s also a default indexer that lets you
retrieve a single character. Note that strings are zero-based, and
the first character is string[0].
You can create a string made up of a single repeated character by
using an alternate constructor and supplying a
char and the number of repetitions.
public sealed class String : IComparable, ICloneable, IConvertible, IEnumerable { // Public Constructors public ...