Android Question Array from range

MotoMusher · Jan 16, 2015

Is there a way in B4A to create an array from a range, specifically letters? I can loop through the integers fine, but need to create arrays of varying lengths using letters. (C,D,E,F,G)

Converting a PHP site, and looking for a way to duplicate the following without typing it out

$arr = array_merge(range(0, 9), range("B", "Z"), range("g", "z"));

Thanks

NJDude · Jan 16, 2015

You could create a string with the value "A......Z" and then use SubString2 to get the range, that of course has to be done in a sub.

Erel · Jan 16, 2015

B4X:

Sub Activity_Create(FirstTime As Boolean)
   Dim arr() As String = range("a", "z")
End Sub

Sub Range(First As Char, Last As Char) As String()
   Dim i1 As Int = Asc(first)
   Dim i2 As Int= Asc(last)
   Dim res(i2 + 1 - i1) As String
   For i = i1 To i2
     res(i - i1) = Chr(i)
   Next
   Return res
End Sub

MotoMusher · Jan 17, 2015

Thank you both.

Android Question Array from range

MotoMusher

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NJDude

Expert

Erel

B4X founder

MotoMusher

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Android Question Array from range

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