1, embedded devices and consumer electronic products,
wireless handheld devices, smart cards, medical equipment, communication terminals, information appliances (such as digital televisions, refrigerators, set-top boxes), automotive electronic devices are more popular Java applications, this area application examples are China Unicom's CDMA1X wireless data network based on Java technology value-added services --UniJa.
2, web development field
in the Java language has been more widely used in Web development, with stable performance and better scalability, Java language has been a major Internet platform important solution. In addition, the majority of enterprise ERP system can also be used Java language, which is a relatively large development market.
The main use JAVAEE, the most typical example is e-commerce trading platform Alibaba and Taobao;
3, Big Data technologies
Hadoop and other large data processing techniques are used or other Java, Java-based such as Apache and Accumulo HBase and ElasticSearchas.
But Java in this area does not take up much space, but as long as Hadoop and ElasticSearchas can grow, Java still there is potential to occupy this part of the market.
4, game developers
a lot of mobile games are developed using JAVA.
5, scientific applications
now Java is often the default choice for scientific applications, including natural language processing. This is the main reason is because Java than C ++ or other languages have more security, portable, maintainable, and Java has a better high-level concurrency utilities.