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Simple and Familiar
Java is simple because: its coding style is very clean and easy to understand. It removes complexity because it doesn’t use complex and difficult features of other languages like C and C++
Compiled and Interpreted
Usually, a computer language can be either compiled or interpreted. Java integrates the power of Compiled Languages with the flexibility of Interpreted Languages. Java compiler (javac) compiles the java source code into the bytecode.
Platform Independent
The most significant feature of Java is that it provides platform independence which leads to a facility of portability, which ultimately becomes its biggest strength. Being platform-independent means a program compiled on one machine can be executed on any machine in the world without any change.
Portable
Java is “portable” refers to the SE (Standard Edition) version. The portability actually comes from architecture-neutrality. In C/C++, the source code may run slightly differently on different hardware platforms, but Java simplifies it. You can run Java bytecode on any hardware that has a compliant JVM which can convert the bytecode according to that particular machine.
Architectural Neutral
This buzzword means that the program written on one platform or OS is independent of other platforms or environments and can run on any other Operating System without recompiling them. In other words, it is based on the ‘Write-once-run-anywhere’ (WORA) or ‘Write-once-run-everywhere’ (WORE) approach.
Object-Oriented
Next in Java features article, we will discuss the OOP feature. Java strongly supports the concepts of Object-Oriented Programming due to which it is called a pure object-oriented language. Java supports major Object-Oriented programming features like Encapsulation, Abstraction, and Inheritance.
Robust
Java is robust as it is capable of handling run-time errors, supports automatic garbage collection and exception handling, and avoids explicit pointer concept. Java has a strong memory management system. It helps in eliminating errors as it checks the code during both compile and runtime.
Secure
Security is an important issue for any programming language as there is a threat of malicious activities and viruses. Java supports access modifiers to check memory access and also ensures that no viruses enter an applet.
The Java Programming Language Platforms
Java SE
When most people think of the Java programming language, they think of the Java SE API. Java SE's API provides the core functionality of the Java programming language. It defines everything from the basic types and objects of the Java programming language to high-level classes that are used for networking, security, database access, graphical user interface (GUI) development, and XML parsing.
Java EE
The Java EE platform is built on top of the Java SE platform. The Java EE platform provides an API and runtime environment for developing and running large-scale, multi-tiered, scalable, reliable, and secure network applications
Java ME
The Java ME platform provides an API and a small-footprint virtual machine for running Java programming language applications on small devices, like mobile phones. The API is a subset of the Java SE API, along with special class libraries useful for small device application development. Java ME applications are often clients of Java EE platform services.
JavaFX
JavaFX is a platform for creating rich internet applications using a lightweight user-interface API. JavaFX applications use hardware-accelerated graphics and media engines to take advantage of higher-performance clients and a modern look-and-feel as well as high-level APIs for connecting to networked data sources. JavaFX applications may be clients of Java EE platform services.