1. Scientific Application

    Java is mostly used for developing scientific applications. 

    It has been a strong language in this area because it offers the tools 

    to create large-scale scientific computing and simulation environments 

    while also being able to perform high levels of computational tasks that

    scientists require.

2. Financial Sector Server Apps

    Few of the most popular real-world use cases of Java are in the financial sector.

    The language is used to create server applications because it 

    offers high performance for data processing and can also be synchronized 

    with many different servers, which makes them more stable.

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3. Trading Application

    Java is also used to write trading applications.

    These apps are created for the purpose of providing 

    traders with a platform that can be accessed from anywhere 

    and provides them with all the tools they need ̵to trade stocks, commodities, etc.

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4. Android Applications

    Java is also used to develop Android applications. 

    This software is designed exclusively for mobile devices 

    and helps develop apps that are compatible with Google’s operating 

    system for smartphones, tablets, etc.

5. Embedded Systems

    Java is used for writing embedded systems, which are devices 

    that carry out specific functions with a very limited range of input and output. 

    Embedded Systems built on the platform include home appliances such as 

    refrigerators, microwaves, dishwashers, etc.

6. Web Applications

    Java is a popular language and is well known for building 

    outstanding web applications. Moreover, this technology provides a range 

    of features that are perfect for creating dynamic websites and web applications,

    such as Java Server Pages (JSP) or Servlets. Java applications development is the 

    best choice for the creation of the leading and extraordinary apps.

7. Desktop GUI Application

    Java is used for applications that are designed to run on a particular desktop GUI.

    These apps can perform many tasks and are created with certain functions in mind,

    like designing an application or playing games.

8. Software Tools

    Java is also used widely to develop software tools. 

    These are programs that help businesses provide them with a range of features, 

    such as testing applications or debugging code. Some examples include JUnit, 

    FitNesse, NetBeans IDE, etc.