[ntw1103]

That depends on how you define proficent.

This month I have programmed in the following languages:

D, ECMAscript, python, php, bash, c/c++, Java, powershell, and groovy.

There are other langues I use. as for how? Most of what to do in each language is the same, the Languages just change how you go about doing it. Most of the difference is the keywords and syntax. the tasks you are writing out are the same or similar, with some features of languages making certain parts easier.