Re: Learn all of them, but NOT Java
10 print "Enter option number: "
20 input a
30 go to a*1000
1000 rem b=56*c
2000 print "sub menu"
3000 rem input c$
Only it wasn't in multiples of 1000. You see the commented out code (rem statement) and think it is no longer needed, so you can delete it to save space and make room for new code... Only to find out later that the code falls over when run.