Why to choose C/C++ over Java?

Answer 1

In programming one should always use the language the one with which you are most comfortable. However in some cases we choose C/C++ because it is much faster than Java or C#. (with MPI you can parallelize this task for very large clusters.)

I don't know the intention of the query so cant put the exact answer....

Comments

C/C++ is faster then C#/Java is the only reason people choose C/C++ for development?
For an example:
As far as i know development of device driver/LTE/etc etc uses C/C++ why not Java there?

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Lower level code is written in C not C++ as it is more close to assembly. However as you more to higher layer the C becomes C++ and at the complete application layer it may be Java or something similar.

Answer 2

because there is better scope than other languages most probably is java
all the new application is running on java , but C/C++ is also a better option for future in all IT componys