Which is the best choice learning c++ and QT Framework or learning Java and why ?

Thank you for the question,

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it depends on what you like to do and what kind of programming you work with, but as i see from your background you involved in web programming so JAVA will be better to learn than C++ and QT

for knowledge and know how to create code  so you learn c++

for easier and speeder and beautiful user inter face you must learn java because java  structure consisted of many classes that deal with many taskes

so java is better to deal with code than c++   

Jave is not a functional programming language!

back to question, it really depends on your needs, each one of the languages has it's own pros and cons.

if you are after learning only, i would start with JAVA since it's easier (for me at least) then dive into C++.

the QT library can work with both

regards,

you are in the IT department, you can re-direct, the first page, your colleagues open, to a scary or funny picture; but as Riyas said, it's just a prank not a real hack.