wanted guidence abt java courses.

i am B.E.graduate in electronics and telecomm. i am looking for ob in software.But my problem is that i am not comfortable with c and data structure which is basic criteria in this field.Is it right to join c/c++ courses in reputed instiute or we can do it by self by using my P.C.
And is any need to join courses like java ,.net,oracle.
i am really confused....i am staying in pune for searching the job
please guide me.

any need to join courses like java ,.net,oracle.

The disadvantage is that most courses are too expensive to pay from your own pocket.
To get base knowledge, a good book and lots of exercising will be a good starting point.
All software required to practice java, c and oracle is available with a free license.
Maybe you get a chance to agree with your future employer to define a training path for you.

Regards, Jan