What are the features of Java?

Java is a language that has become successful and popular because of the following features.

Platform independent

The Java programs compiled on one operating system can be transferred and executed on any Operating System without modifications. This can be achieved through an application called Java Virtual Machine or simply JVM, as follows:

Once we create the java source code, we compile it using Java Compiler. The compiler then creates something called Java Byte code. This byte code can be copied and executed anywhere, even on mobile phones. Thus, Java is also called an Architecture Neutral Language.

Object-Oriented

Java is the only language that is a purely object-oriented language. This means that every OOP concept is supported by Java. Also, it should be noted that even the main() function needs to be defined under a class.

Compiled and interpreted

Java is a language that provides both compilation and interpretation of programs. Once the java program is created, it is compiled by Java Compiler. This compiled code (Byte code) can be executed using Java Interpreter.

Multi-Threaded

With this feature, Java supports “Multitasking”. Multitasking is when multiple jobs are executed simultaneously. Multitasking improves CPU and Main Memory Utilization.

Dynamic

This is one of the important features that made Java popular. Assume that we created 100 functions in a program. In no case, would all the functions are executed. But, in languages like C, whether it’s required or not, all the functions are loaded into memory, which results in wasting memory. However, in Java, a function is not loaded into the memory until you call the function. So, functions are only loaded when they are called (i.e., at run-time).

Simple, small, and familiar

The Java program is easy to build and implement when compared to languages like C and C++ because most of the concepts in these languages that people felt were difficult or confusing have been eliminated in Java. Also, the concepts in C and C++ that programmers have enjoyed are included in Java.

Robust and Secure

As a robust language, Java provides many safeguards to ensure reliable code. It also provides an exception handling concept to handle logical errors that may crash a system. As a secured Language, Java makes sure that programs cannot gain access to memory locations without proper authorization. Java is a distributed language for creating networking applications, and it can share data and programs. Java applications provide mechanisms to open and access objects remotely.

High Performance

Java architecture is designed to reduce overheads during run-time. The concept of multithreading in Java also increases the execution speed of Java programs.