Search:

You're storing the individual digits as chars. Chars are basically a subset of int, and their values map to ints that have little to do with the character they represent. So when you call:

new...

Why doesn't it matter? It doesn't look like a complicated problem to fix, if you just throw together the SSCCE.

I'd be willing to run your code, but I can't do it without an SSCCE. It's up to you, but it's my bedtime soon.

If you want help, you'll have to provide an SSCCE that demonstrates the problem- for example, we have no idea what StackObj is doing.

You'll also want to avoid mentioning your deadlines like that....