Middle three digits: Difference between revisions
Added BASIC256 and Yabasic
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(Added BASIC256 and Yabasic) |
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0: ?ONLY 1 DIGIT
</pre>
==={{header|BASIC256}}===
<syntaxhighlight lang="vb">function middleThreeDigits(n)
if n < 0 then n = -n
if n < 100 then return "" ## error code
if n < 1000 then return string(n)
if n < 10000 then return ""
ns = string(n)
if length(ns) mod 2 = 0 then return "" ## need to have an odd number of digits for there to be 3 middle
return mid(ns, length(ns) \ 2, 3)
end function
dim a = {123, 12345, 1234567, 987654321, 10001, -10001, -123, -100, 100, -123451, 2, -1, -10, 2002, -2002, 0}
print "The 3 middle digits of the following numbers are : "
print
for i = 0 to 15
result = middleThreeDigits(a[i])
print a[i]; chr(9); " => ";
if result <> "" then
print result
else
print "Error: does not have 3 middle digits"
end if
next</syntaxhighlight>
{{out}}
<pre>Similar to FreeBASIC entry.</pre>
==={{header|BBC BASIC}}===
Line 1,287 ⟶ 1,314:
-2002 length < 3 or is even
0 length < 3 or is even</pre>
==={{header|Yabasic}}===
<syntaxhighlight lang="vb">sub middleThreeDigits$ (n)
if n < 0 n = -n
if n < 100 return "" // error code
if n < 1000 return str$(n)
if n < 10000 return ""
ns$ = str$(n)
if mod(len(ns$), 2) = 0 return "" // need to have an odd number of digits for there to be 3 middle
return mid$(ns$, len(ns$) / 2, 3)
end sub
dim a(16)
a(0) = 123 : a(1) = 12345 : a(2) = 1234567
a(3) = 987654321 : a(4) = 10001 : a(5) = -10001
a(6) = -123 : a(7) = -100 : a(8) = 100
a(9) = -123451
a(10) = 2 : a(11) = -1 : a(12) = -10
a(13) = 2002 : a(14) = -2002 : a(15) = 0
print "The 3 middle digits of the following numbers are : \n"
for i = 1 to 16
result$ = middleThreeDigits$(a(i))
print a(i), "\t => ";
if result$ <> "" then
print result$
else
print "Error: does not have 3 middle digits"
fi
next</syntaxhighlight>
{{out}}
<pre>Similar to FreeBASIC entry.</pre>
=={{header|Batch File}}==
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