Android Question Convert Number to Letter

aaronk · Jun 27, 2014

Hi,

I am trying to convert a number into a Letter.
It might sound simple but I just can't work this simple thing out.

What I am trying to do is the Number 1 should convert to A and 17 should be B etc, up to 256.

For Example:
1-16 = A
17-32 = B
..
..
97-112 = G
..
..
241-256 = P

Anyone able to help ?

eps · Jun 27, 2014

If then else if? Although I'm sure there's a more clever way to do this.

I was going to say a Case statement, but that might be harder to do and a bit clumsy.

Regex? http://www.b4x.com/android/forum/threads/regex-and-replace.15677/#post-138823

NJDude · Jun 27, 2014

You could create a small database with 3 fields: Min, Max and Letter and then just query it and get the corresponding letter depending on the value.

nwhitfield · Jun 27, 2014

Subtract one from your number.
Divide it (as an Int) by 16. So for 1-16, the result will be 0. For 17-32 it will be 1.

Add 65 to your answer, and you'll have the ASCII code of the letter you want.

Eg

B4X:

Dim mynum as int
log(chr((mynum-1)/16)+65)

Android Question Convert Number to Letter

aaronk

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eps

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NJDude

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nwhitfield

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Android Question Convert Number to Letter

aaronk

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eps

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