VB.Net/Language Basics/Char
Содержание
Char IsDigit
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("is digit: " & Char.IsDigit("aaa") ) End Sub " Main
End Class
</source>
Char IsLetter
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("is letter: " & Char.IsLetter("aaa") ) End Sub " Main
End Class
</source>
Char IsLetterOrDigit
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("is letter or digit: " & Char.IsLetterOrDigit("aaa") ) End Sub " Main
End Class
</source>
Char IsLower
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("is lower case: " & Char.IsLower("aaa") ) End Sub " Main
End Class
</source>
Char IsPunctuation
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("is punctuation: " & Char.IsPunctuation("aaa") ) End Sub " Main
End Class
</source>
Char IsSymbol
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("is symbol: " & Char.IsSymbol("aaa")) End Sub " Main
End Class
</source>
Char IsUpper
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("is upper case: " & Char.IsUpper("aaa") ) End Sub " Main
End Class
</source>
Char ToLower
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("to lower case: " & Char.ToLower("aaa") ) End Sub " Main
End Class
</source>
Char ToUpper
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Console.WriteLine("to upper case: " & Char.ToUpper("aaa") ) End Sub " Main
End Class
</source>
Create a Console Line by Repeating a Char
<source lang="vbnet"> Imports System
Public Class MainClass
Shared Sub Main() Console.WriteLine(New String("-"c, 100) ) End Sub
End Class
</source>
Display contents of charArray
<source lang="vbnet"> Imports System Public Class MainClass
Shared Sub Main() Dim string1 As String = "hello" Dim string2 As String = "GOOD BYE " Dim string3 As String = " spaces " Dim i As Integer Dim charArray() As Char = string1.ToCharArray() Console.WriteLine("string1 = " & string1 & vbCrLf & "string2 = " & _ string2 & vbCrLf & "string3 = " & string3) For i = 0 To charArray.Length - 1 Console.WriteLine(charArray(i)) Next
End Sub " Main
End Class
</source>
Four ways to declare Characters
<source lang="vbnet">
Public Class MainClass
Public Shared Sub Main() "Character Declarations Dim chrLtr_a As Char = "a"c Dim chrAsc_a As Char = Chr(97) Dim chrAsc_b As Char = ChrW(98) Dim bytLtrA As Byte = Asc("a") Console.WriteLine(chrLtr_a) Console.WriteLine(chrAsc_a) Console.WriteLine(chrAsc_b) Console.WriteLine(bytLtrA) End Sub
End Class
</source>