Features of Java

Features of Java


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Everyone who has ever heard about programming knows that Java is among the leading programming languages. Java is increasing in popularity every passing year because of its impressive features. Let’s take a look at the top features of Java that make Java a darling to developers.

Features of Java

Great Performance

The Java compiler is designed for performance. Java code is compiled into bytecode and then compiled by the Java compiler. Post that, it is fed to the JVM (Java Virtual Machine) before it’s converted to machine level code.

Inspired by C and C++

C and C++ are long-tenured programming languages and they are the ancestors of the modern programming languages like Java and Python. Java is a bit similar to C and C++ but doesn’t have features such as pointers and multiple inheritances. Therefore, having an understanding of C and C++ is useful in learning Java.


Multithreading capabilities come built right into the Java language. This means it is possible to build highly interactive and responsive apps with a number of concurrent threads of activity.

Platform Independence

Java has a philosophy called WORA (Writing Once, Run Anywhere). Java code is compiled into an intermediate format, called bytecode, which is to be executed in the JVM (Java Virtual Machine). Any system that runs a JVM is able to execute the Java code.

Truly Object-Oriented

Build upon C++ which is semi object-oriented, Java extends the functionality to become a fully object-oriented programming language. Some of the most important features that make it an object-oriented puritan are:

  • Abstraction
  • Encapsulation
  • Inheritance
  • Polymorphism


Java guides the programmer to adopt important programming habits required for the creation of highly reliable applications. Unlike C and C++, Java relies on a simple memory management model reinforced by the automatic garbage collection feature.


Safety features are built into the language and runtime systems. These include runtime checking and static type-checking at compile time. With such features in place, it becomes a daunting task to invade a Java application from the outside.


Ease of reading and writing makes any language simple. This holds true for Java as it has a less ambiguous syntax terminology. Anyone can start right off with Java with an understanding of the basic underlying principles of programming.

Other benefits of Java

Other than the aforementioned features, here are some other great options for choosing Java over other programming languages:

  • A multitude of open-source libraries
  • Backed by Oracle and high-level support from tech giants like Google and IBM
  • Big and mature community support
  • Several readily available frameworks for rapidly building reliable apps
  • There are a galore of IDEs and tools to help make Java development simpler

Why is Java so popular?

An important reason that contributes to the immense popularity enjoyed by Java is its platform independence or multiplatform support. Java programs are able to execute on different machines as long as there is a JRE (Java Runtime Environment) in place. Be it mobile phones, PCs running Linux, macOS, or Windows, and even large mainframe computers, JRE is compatible with all of them.

Java has been around for over two decades, and it has been enjoying the sunshine of fame. Therefore, it is obvious that several big names have built a solid foundation using Java. Even after spending so much time, there are no signs of slowing down as the high-level, object-oriented programming language is climbing the ladder of popularity.

Java is an evolving language, like real languages, and thus it has the unique ability to combine innovation with stability. Any code that was written way back during the humble beginnings of Java will still run on today’s faster and better JVMs. Additionally, the code will gain from:

  • Latest profiling
  • Memory management
  • Native code translating

As the objects are free from references to external data, Java code boasts robustness. Though the programming language is simple, it is powerful enough to allow spawning a wide array of libraries and classes.

Where is Java Being Used?

For several years, Java has been the language of choice of naïve and experienced programmers, alike. Some of the most important uses of Java are:

  • Creating Android Applications – Though there is a variety of JVM-usage and packaging methods for the distribution of Android apps, the code written is basically Java. Even the latest Android-app maker Kotlin programming language is inspired by Java. Google’s Android API is used predominantly for making apps for the Android platform.
  • Designing Web Applications – Another popular use of Java is for designing web applications. In addition to private organizations like Google, government facilities, healthcare institutions, educational bodies, and even defense departments rely on Java for building important web applications.
  • Scientific Applications – Java is also used for making scientific applications a reality. It is preferred over C++, which is also used for the same purpose because it flaunts better high-level concurrency tools in addition to being maintainable, portable, and safe.
  • Software Tools – Java is a big part of the software industry. It has been used to fuel open-source and commercial projects alike. Eclipse, IntelliJ IDEA, and NetBeans IDE are some of the best IDEs to create Java applications and even they are developed using Java.

That’s All!

Whether you’re looking forward to a career in game development or develop immaculate web applications, Java is worth the effort. The programming language is able to adapt to a wide set of environments, thus allowing for remarkable capabilities and opportunities.

Learning Java allows you to better understand the underlying concepts of programming as well as enable you to have a jumpstart in learning other popular, Java-inspired programming languages.

For a web developer, there are several programming languages and frameworks to toy with. Therefore, the more the merrier. Having an understanding of several web technologies and programming languages will ensure you stay relevant in the rapidly-evolving field of IT and make a good living in the age of information.

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25 Comments, RSS

  1. Avatar

    Tonya Barton February 8, 2019 @ 10:32 am

    What is the most important feature of Java?

    • Avatar

      Ariel Cohn February 20, 2019 @ 8:23 pm

      Java is platform independent object oriented programming language which is robust and secure for web development. Other than that, it is portable and compiled and interpreted.

  2. Avatar

    Lorraine Craig February 8, 2019 @ 10:34 am

    How does ThreadLocal work in Java?

    • Avatar

      Ariel Cohn February 20, 2019 @ 9:37 pm

      ThreadLocal is a class that enables Java to create variables that can be read and written by the same thread only. Therefore if two threads are executing the same code then they are not able to see each other’s ThreadLocal variables.
      Example to create a ThreadLocal variable: private ThreadLocal myThreadLocal = new ThreadLocal();

    • Avatar

      Mckinley Peak February 20, 2019 @ 9:38 pm

      Volatile keyword is used to make class thread safe. Thread safe means multiple threads can use the same class or instance at the same time without any problem.

  3. Avatar

    Courtney Wood February 8, 2019 @ 10:35 am

    How does volatile variable works in Java?

  4. Avatar

    Kelley Gill February 8, 2019 @ 10:35 am

    Why do we serialize objects in Java?

    • Avatar

      Kieth Woo February 20, 2019 @ 9:38 pm

      Java objects are stored in heap memory in JVM and after execution of program all objects stored in heap memory will be lost. Sometimes when you need to store objects for future use, serialization comes there. Serialization is a technique to convert the object state into a byte stream so that it can be easily transported.

  5. Avatar

    Rudolph Owens February 8, 2019 @ 10:35 am

    Why Java is secure with example?

    • Avatar

      Rey Geary February 20, 2019 @ 9:39 pm

      Java has its own memory management, no pointer concept, access specific keywords as public, private, protected, compile-time checking and exception handling are the features which make Java more secure.

  6. Avatar

    Bob Keller February 8, 2019 @ 10:36 am

    Which language is more secure Java or C?

    • Avatar

      Harris Devlin February 20, 2019 @ 9:39 pm

      Obviously, Java is more secure than C. Java doesn’t have pointers. Java programs runs on JVM hence virus won’t be executed. Java contains set of API for cryptography to provide more security. Exception handling feature prevent to generate errors during runtime.

  7. Avatar

    Lyle Warner February 8, 2019 @ 10:36 am

    Why pointer is not supported in Java?

    • Avatar

      Dorian Rosas February 20, 2019 @ 9:40 pm

      A pointer is used to directly access the location using the address. Memory access via pointer is arithmetic and it is unsafe. Pointers allows manual memory management but Java doesn’t. Java doesn’t support the pointer concept and this makes it more secure language.

  8. Avatar

    Emma Bryan February 8, 2019 @ 10:37 am

    What are the benefits of using Java over C++?

    • Avatar

      Alonso Bartlett February 20, 2019 @ 9:40 pm

      • Easy to learn
      • No Pointers
      • Platform Independent
      • Garbage Collector
      • Just in Time compiler
      • Concurrent
      • Reflective
      • Exception Handling
      • Easy to Deploy
      • Web Application
      • Synchronization
      • Better career growth

  9. Avatar

    Calvin Gibson February 8, 2019 @ 10:39 am

    What is the difference between runnable and callable in Java?

    • Avatar

      Leopoldo Legg February 20, 2019 @ 9:41 pm

      Runnable:- Runnable Objects does not returns a value and can’t throw a checked exception. Runnable interface has been around since Java 1.0.
      Callable:- Callable objects returns a value and it can throw an exception. Callable was only introduced in Java 1.5.

  10. Avatar

    Carrie Clarke February 8, 2019 @ 10:40 am

    What is use of callable interface in Java?

    • Avatar

      Jamey Judd February 20, 2019 @ 9:41 pm

      Java Callable interface use Generic to define the return type of Object. Executors class provide useful methods to execute Java Callable in a thread pool. Since callable tasks run in parallel, we have to wait for the returned Object.

  11. Avatar

    Lionel Morgan February 8, 2019 @ 10:40 am

    How does executor work in Java?

    • Avatar

      Darrick Emanuel February 20, 2019 @ 9:42 pm

      The Java Executor Framework follows WorkerThread patterns, wherein a thread pool you can initiate threads by using the Executors.newFixedThreadPool(10); method. Executer framework offers a submit() method to execute callable implementations in a thread pool.

  12. Avatar

    Sherman Mcguire February 8, 2019 @ 10:41 am

    What is executor in multithreading?

    • Avatar

      Shad Herrington February 20, 2019 @ 9:42 pm

      It is an abstraction layer in the actual implementation of Java Multithreading. Executor framework is the first concurrent utility framework in Java which is used for standardizing invocation, scheduling, execution, and execution and control of asynchronous tasks in parallel threads.

  13. Avatar

    Robert Ridal September 10, 2019 @ 8:39 pm


    I want to ask that from where did you get all this information?