Is Number Odd?

[SteveB]

Another recursive method. However this time it uses the unique feature of Variable Rollover. Also, if nothing is found at the end of checking all possible values for a WORD, the outcome must be Zero.

TestNumber as word
TestVal as word

For TestVal = 65534 to 2 step -2
	If (TestNumber + TestVal)= 0 Then
		LCDOUT "Even"
		EndProgram
	Else
		If (TestNumber + TestVal) + 1 = 0 then
			LCDOUT "Odd"
			EndProgram
		Else
	Endif
Next TestVal
	LCDOUT "Zero"
EndProgram:
end

EDIT: This may be premature, I think I left a hole at the value of "65535". Standby

[T.Jackson]

Another recursive method. However this time it uses the unique feature of Variable Rollover. Also, if nothing is found at the end of checking all possible values for a WORD, the outcome must be Zero.

TestNumber as word
TestVal as word

For TestVal = 65534 to 2 step -2
	If (TestNumber + TestVal)= 0 Then
		LCDOUT "Even"
		EndProgram
	Else
		If (TestNumber + TestVal) + 1 = 0 then
			LCDOUT "Odd"
			EndProgram
		Else
	Endif
Next TestVal
	LCDOUT "Zero"
EndProgram:
end

I don't consider that to be recursive. To be recursive means to have a procedure (method in Java's case) -- that repeatedly calls itself until the operation is complete.

Kinda like getting a pie that you need to cut up into (n) pieces. Instead of cutting out each piece you cut the whole thing repeadedly until you have (n) pieces.

Trent Jackson

[SteveB]

OK, This is better. It has to do one final check after the FOR..NEXT loop.

TestNumber as word
TestVal as word

For TestVal = 65534 to 2 step -2
	If (TestNumber + TestVal)= 0 Then
		LCDOUT "Even"
		EndProgram
	Else
		If (TestNumber + TestVal) + 1 = 0 then
			LCDOUT "Odd"
			EndProgram
		Else
	Endif
Next TestVal
If (TestNumber + TestVal) - 1 = 0 then
       LCDOUT "Odd"
       EndProgram
Else
       LCDOUT "Zero"
Endif
EndProgram:
end

[T.Jackson]

Recursive example ...

public int divideBy(int n)
{
   num = num / n
   if(num > 0)
      divideBy(n);
}

It keeps calling itself until we have arrived at something. In PBP you would of course need to exchange the "public int divideBy(int n)" with a label and swap "divideBy(n)" with a goto.

Trent Jackson

[precision]

Hi Trent, I think...

There'r Out of 10's methods. You want's onlyup to 10th.
So should Listing now.

.