java is a computer programming language; can be used to do a lot of work, big data development belongs to one of them; big data belongs to the direction of the Internet, as now built on the basis of big data AI direction, he two is not a similar, but belong to the relationship between contain and be contained;

java can be used to do big data work, big data development or application unnecessary java, can Python, Scala, go language and so on. application is not necessary to use java, can Python, Scala, go language and so on.

Said so, you can understand it? Hope to adopt!