Tried c++ and Qt today

Expected output: "Hello world"
Running normally: (garbage)
Running normally, but outputting the length of the string to qDebug: "Hello world"

W H A T

Your doing it wrong.

Show us the code!

Sounds like you made a mistake

@Demolishun @YADU

Yep, of course. I was passing 8 bytes instead of 16 bytes to the AES function.

How outputting the length of the array fixed that? I will never know. Maybe it set the next few bytes to exactly 0 instead of garbage. Leading theory.

@AlgoRythm Ah, encryption, that is its own punishment.

I also want to learn C++ as well. Not sure from where should I start? Can you please guide me a little?

@KeyLerri Depends on what you already know. If you don't already, you should get very comfortable with both c and a bytecode c-like language of your choice (c# or java, basically).

c++ demands a good understanding of both

@AlgoRythm Thanks for your reply here. Actually, I am totally new to programming. I don't know anything yet. But I have a great interest in this field. Thank you!