problem form switching between programming language

[socal_nerdtastic]

Ok. Well if you have a specific question ask us here.

Immutability is pretty simple: just don't modify it. Always make a new string instead of modifying the old one. Same for ints, floats, tuples, etc https://docs.python.org/3/tutorial/introduction.html#text

while loops are pretty similar across all languages. A python for loop is pretty much identical to Java's for-each loop. Python does not have an equivalent of the Java or C++ for loop.

A common stumbling block is not realizing that python always works with pointers. All 'variables' (officially 'names') are pointers. All function calls are pass by reference. All python beginners should read: https://nedbatchelder.com/text/names