On which application i run my codes on pc or mobile n I just started learning

Answer 1

Can you specifically tell which language ?It would be better if you would mention it in your tag .
The app or software that run programming is called compiler:
I guess you need compiler of c++ language. Then some reference for you:
https://www.sololearn.com/Discuss/1884728/which-is-the-best-compiler-for-cpp-on-android
https://www.sololearn.com/Discuss/1752315/which-compiler-is-best-compile-for-c-c
https://www.sololearn.com/Discuss/1096410/which-is-the-best-c-compiler
https://www.sololearn.com/Discuss/188200/what-s-the-best-compiler-for-c
https://www.sololearn.com/Discuss/1410647/which-one-is-the-best-compiler-for-c-and-c
And also please use the search bar next time:
https://www.sololearn.com/post/10362/?ref=app

Answer 2

Ganesh Rockzz Please specify the language you use....there are different compilers for different languages...

I use Java....and BlueJ is the environment made for compiling and running java codes.