Need to learn Java, 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 is not necessary to use Java, you can Python, Scala, go language and so on.

Currently the hottest big data development platform is Hadoop, which is written in Java. On the one hand, because of the history of hadoop, Hadoop's project was born in a Java master; on the other hand, there are also advantages in terms of Java cross-platform; based on these two aspects of the reason, so Hadoop uses the Java language. But also because Hadoop uses Java so there is a "Java big data".

Java is a familiar programming language, big data is the star technology of today's technology. Java Big Data is a combination of Java and Big Data, which can also be said to be the transition phase of Java programmers to Big Data programmers.