Java is an object-oriented programming language that can be used to write cross-platform applications. Java technology has excellent versatility, efficiency, platform portability and security. It is widely used in PCs, data centers, game consoles, scientific supercomputers, mobile phones and the Internet. It also has the world's largest professional community of developers.
JAVA applications cover a wide range of areas, including the following fields:
Desktop-level applications: especially desktop-level applications that require cross-platform. To put it simply, it is a program whose main functions are run on the local machine. Applications such as word and excel that run on the local machine are desktop applications.
Enterprise-level applications: Simply put, they are large-scale applications. Generally, they have a large number of users and a large amount of data, and have a negative impact on the stability, security, scalability and assemblability of the system. relatively high requirements. At present, enterprise-level applications are the most widely used field of Java, almost unique. Including various industry applications, enterprise informatization, e-government, etc., including office automation OA, human resources HR, customer relationship management CRM, enterprise resource planning ERP, supply chain management SCM, and enterprise equipment management system EAM.
Embedded devices and consumer electronic devices: including wireless handheld devices, smart cards, communication terminals, medical equipment, information appliances (such as digital set-top boxes, refrigerators), car navigation systems, etc. are all popular in recent years. The field of Java applications, especially Java applications and Java games on mobile phones, is even more popular.