Char: IsLetter : char « Data Type « C# / CSharp Tutorial

1.	Language Basics
2.	Data Type
3.	Operator
4.	Statement
5.	String
6.	struct
7.	Class
8.	Operator Overload
9.	delegate
10.	Attribute
11.	Data Structure
12.	Assembly
13.	Date Time
14.	Development
15.	File Directory Stream
16.	Preprocessing Directives
17.	Regular Expression
18.	Generic
19.	Reflection
20.	Thread
21.	I18N Internationalization
22.	LINQ
23.	GUI Windows Forms
24.	Windows Presentation Foundation
25.	Windows Communication Foundation
26.	Workflow
27.	2D
28.	Design Patterns
29.	Windows
30.	XML
31.	XML LINQ
32.	ADO.Net
33.	Network
34.	Directory Services
35.	Security
36.	unsafe

C# / C Sharp

C# / C Sharp by API

C# / CSharp Open Source

C# / CSharp Tutorial » Data Type » char

2.18.5.Char: IsLetter

using System;  

  

class MainClass {     

  public static void Main() {     

    string str = "This is a test. $23"; 

    int i; 

 

    for(i=0; i < str.Length; i++) { 

      Console.Write(str[i] + " is"); 

      if(Char.IsLetter(str[i])) 

        Console.Write(" letter"); 

 

      Console.WriteLine(); 

    } 

 

  }     

}

T is letter
h is letter
i is letter
s is letter
  is
i is letter
s is letter
  is
a is letter
  is
t is letter
e is letter
s is letter
t is letter
. is
  is
$ is
2 is
3 is

2.18.char
	2.18.1.	Assign value to a char type
	2.18.2.	Methods Defined by Char
	2.18.3.	Character Escape Sequences
	2.18.4.	Char: IsDigit
	2.18.5.	Char: IsLetter
	2.18.6.	Char: IsLower/IsUpper
	2.18.7.	Char: IsSymbol
	2.18.8.	Char: IsSeparator
	2.18.9.	Char: IsWhiteSpace
	2.18.10.	Char: IsPunctuation
	2.18.11.	Convert character to upper case
	2.18.12.	Use a char to control the switch.
	2.18.13.	Get characters in a string
	2.18.14.	Using the Plus Operator with the char Data Type
	2.18.15.	Char type Functionality
	2.18.16.	Determining the Character Difference between Two Characters
	2.18.17.	Displaying Each Character's ASCII Value in Descending Order
	2.18.18.	Using Unicode Encoding to Display a Smiley Face

www.java2java.com | Contact Us

All other trademarks are property of their respective owners.