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Greenhorn
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hope the saloon hands are not tired of my math questions...

i have a string that needs to be incremented by one. i am getting compiler errors with this code:
bpt.Current_Billing_Year_2 = (++Integer.toString(Integer.parseInt(bpt.Current_Billing_Year_2)));

actually, i have put the increment signs (++) in every place on the right side of the equation that is possible. each generates a compiler error.
of course it doesn't work to increment the string so my question is...what in the world do i increment?
 
Sheriff
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You are trying to increament the String not the int
try:
 
Adrienne Peck
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thanks for the help! that makes sense. i made the change but am getting a message that states 'invalid argument to operation' with this code:

(bpt.Current_Billing_Year_2) = (Integer.toString(++(Integer.parseInt(bpt.Current_Billing_Year_2))))

the left side of the equation is a string. when i parse it to be an integer, i get an error saying the left-hand side must be a variable. i think i'm missing something basic here...

wouldn't '(bpt.Current_Billing_Year_2)' be considered a variable?
why would i still get 'invalid argument to operation' error when i am incrementing the parsed integer value and not the string?
 
lowercase baba
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ugg...

don't put all the code on one line. it makes it hard to figure out what's going on, hard to read, hard to debug, and hard to correct.

one line of code should do one thing (in my opinion).

parse the string on one line, and save it in a temp variable. make sure that works. then increment it. then convert that back to a string.

even if you don't want to do that in your production code (although i'd still reccomend you DO), do it to test stuff and see what's going on.
 
Adrienne Peck
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Hey, thanks...it worked. I've learned two lessons today - how to code and how to format better.
 
Greenhorn
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Originally posted by fred rosenberger:
don't put all the code on one line. it makes it hard to figure out what's going on, hard to read, hard to debug, and hard to correct.

one line of code should do one thing (in my opinion).



Thanks! I got a lot.
 
It is sorta covered in the JavaRanch Style Guide.
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