Chapter12 - Working with String potx

Chapter 12. Working With String

Hoang Anh Viet

VietHA@it-hut.edu.vn

HaNoi University of Technology

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Microsoft

Objectives

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“Describes how strings are a first-class type in the CLR and

how to use them effectively in C#. A large portion of the chapter

covers the string-formatting capabilities of various types in

the .NET Framework and how to make your defined types

behave similarly by implementing IFormattable. Additionally, I

introduce you to the globalization capabilities of the framework

and how to create custom CultureInfo for cultures and regions

that the .NET Framework doesn’t already know about.”

Microsoft

Roadmap

12 .1 String Overview

12.2 String Literals

12.3 Format Specifiers and Globalization

12.4 Working String from Outsite Sources

12 5 StringBuilder

12.6 Searching Strings with Regular Expression.

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Microsoft

12.1 String Overview

 In C#, String is a built-in type.

 In the built-in type collection , String is a reference type and but

most of the built-in types are value types.

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Microsoft

String Basics

 A string is an object of type String whose value is text.

 The text is stored as a readonly collection of Char objects.

 Each of which represents one Unicode character encoded in UTF￾16.

 There is no null-terminating character at the end of a C# string

(unlike C and C++). therefore a C# string can contain any number

of embedded null characters ('\0').

 The length of a string represents the number of characters

regardless of whether the characters are formed from Unicode

surrogate pairs or not.

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