I'm getting a whole bunch of null pointer exceptions when I run my program. Here's the info:
My program takes a text file (myIn.txt), will keep individual totals of all the characters, then put them...

Actually, I'm gonna scrap the whole thing and start from scratch I think. Consider this thread 'solved' for now.

I've figured out that problem, when you apply +,-,*,/ to two chars it returns an int, instead of a new char. I adjusted my program for that, but now, when I run it, if i put in "1+2" i'll get Postfix...

Hello folks, I have a program that uses a linked list to implement a stack to convert a string from infix notation to postfix notation, and then to evaluate it. Well, the conversion part works just...