Question

How to use string.Compare() to compare two strings in VB.NET

Answer 1

Imports System

Public Class CompareTwoStrings
    Public Shared Sub Main()
        Dim s1 As String = "abc"
        Dim s2 As String = "abc"
        Dim n As Integer = String.Compare(s1, s2) ' 0 : s1 = s2
        Console.WriteLine(n)
		
        s1 = "abc"
        s2 = "Abc"
        n = String.Compare(s1, s2) ' -1 = s1 < s2
        Console.WriteLine(n)
		
        s1 = "Abc"
        s2 = "abc"
        n = String.Compare(s1, s2) ' 1 = s1 > s2 
        Console.WriteLine(n)
        
		s1 = "abc"
        s2 = "Abc"
        n = String.Compare(s1, s2, True)
        Console.WriteLine(n) ' 0 : s1 = s2
		
        s1 = "a"
        s2 = "A"
        n = String.Compare(s1, s2) ' -1 : s1 < s2
        Console.WriteLine(n)
		
        s1 = "b"
        s2 = "a"
        n = String.Compare(s1, s2) ' 1 : s1 > s2
        Console.WriteLine(n)
    End Sub
End Class



' run:
'
' 0
' -1
' 1
' 0
' -1
' 1
'

 

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