At present, the training cost of java/ Big Data is around 20,000, which is a famous price in the training market.

I suggest you choose a java/ Big Data training institution, and make a comprehensive investigation from the aspects of teachers, word of mouth and employment.

A good java/ big data training institution+its own unremitting efforts, that is the real icing on the cake, in order to master advanced technology will not be eliminated by the technical army.