I am an android developer and i know java enough, but my main question is which language should i learn to find job in a big company, c# or java? should i learn c# too? cuz many companies want c#
If u are an android dev than u r goog tomgo for the companies, u can still strive fr more like learning Ruby or Python coz these langs are also the primary choice of some MNCs..
If i were you try to study english language because it is the indemand language users
You can take different approaches to this. You can learn a couple of languages and then try to find a job which requores these languages, or you can search for jobs and learn the required languages then.
Learning language is always fun. But for job hunting you should learn what market requires...