Java can do many things, involving all aspects of the programming field. For example:
1. Desktop-level applications
Especially desktop-level applications that require cross-platform.
Desktop-level applications: Simply put, they are programs whose main functions are run on our local machine. Applications such as word, excel, etc. that run on this machine are desktop applications.
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2. Enterprise-level application
Enterprise-level application: Simply put, it is large-scale Applications generally have a large number of users and a large amount of data, and have relatively high requirements for system stability, security, scalability, and assemblability.
This is currently the most widely used field of Java, almost unique. Including various industry applications, enterprise informatization, and e-government.
Fields include: office automation OA, customer relationship management CRM, human resources HR, enterprise resource planning ERP, knowledge management KM, supply chain management SCM, enterprise equipment management system EAM, product life cycle management PLM, service-oriented System architecture SOA, business intelligence BI, project management PM, marketing management, process management WorkFlow, financial management... and so on, almost all applications you can think of.
3. Embedded devices and consumer electronics products
Including wireless handheld devices, smart cards, communication terminals, medical equipment, information appliances (such as digital TVs, set-top boxes, refrigerators), automotive electronics Devices, etc. are all popular areas of Java application in recent years, especially Java applications and Java games on mobile phones, which are even more popular.
In addition to the above mentioned, Java also has many functions: such as performing mathematical operations, displaying graphical interfaces, performing network operations, performing database operations, performing file operations, etc.
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