Difference in Features
Firstly, Java is easy to use and offers more flexibility for developing software applications due to its object oriented approach. The programming language combines some of the best properties of other programming languages, which makes it a superior OOP programming language. Also, Java code is not dependent on the platform, which means that you can write the code in Java on any platform of your choice and then use it on any other platform. You can also access and execute the Java code remotely, without compromising on the security.
Difference in Usage
As mentioned before, Java is a full-fledged OOP programming language and has objects of its own. Java objects are used for developing UIs that appear in Java web browsers or applets or in individual (standalone) Java applications. Java has combined the five best features of other programming languages to create highly interactive web pages.
Java is mostly used for online messaging applications, online banking, games, online calculators, credit card processing and more. A number of social networking sites are also highly dependent on Java programming. In simple words, Java is extensively used for creating millions of apps worldwide and automating online processes.