Why java is platform independent?

In this post I will explain what java is, how it works, how java is platform independent programming language, and what makes it so popular.
java is platform independent

What is Java?

Java is one of the most widely used programming languages worldwide, especially for developing web applications. It was created by James Gosling and released in 1995 on Google’s site, the original version being called Oak. . Due to its large community and simplicity of use, it has risen in popularity and  used by nearly 17 million websites, including Gmail, Netflix, etc.

In this post I will explain what java is, how it works, how java is platform independent programming language, and what makes it so popular.


Whys Java?

Java is a programming language used to build applications that run on any device with internet connection, like mobile phones, tablets or PCs. This makes it perfect for building web applications and apps for any service that requires a web-based interface. It is used by most large companies like Facebook, Google and many others. Java was created in 1995 by a programmer named James Gosling whilst working at Sun Microsystems as part of their development team.


Java is a high – level programming language.

Java isn’t simply another programming language. It works on any device with an internet connection, not just desktop computers. Java was created to solve the issue of different operating systems and the limitations involved in the largest software industry at that time: Microsoft Windows and Apple Macintosh. Java is a platform independent programming language it enables you to write programs for different operating systems without worrying about the specifics of each one. It allows you to write a program in one language and then compile it into another language platform-independent, so your program goes only where you want it to go, rather than being restricted by limits on specific platforms.

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Some features that enable Java be platform independent are as follows:

  • Cross-Platform Programming Language

Java is a cross-platform programming language. As a result, it has capabilities like source code cross-platform, OS-level cross-platform (Windows, Macintosh, etc.), and CPU architecture cross-platform.

  • Multithreading

Java programming language can handle numerous jobs at the same time. It can do multiple tasks at once because to its multithreading capabilities. As a Java programmer, you can also save time, memory, and resources using this functionality. Multiple threads share the same memory and resources at the same time.

  • Object-oriented programming (OOP)

The Java programming language’s object-oriented programming feature makes it a more dynamic coding language.

Java programming language uses a OOP concepts, such as:

  • Object
  • Class
  • Encapsulation
  • Polymorphism
  • Inheritance
  • Security and Robustness 

Java is an extremely safe programming language. It secures the system as a whole by running its programs on the more secure JRE (Java Runtime Environment).

This programming language is particularly dependable in terms of code execution and performance because it works faster and provides information. Many web and mobile apps may be produced in less time using this programming language.

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  • Java Is Mostly Used In Web Applications

Java became popular as a programming language for creating web-based apps and services. In 1995, Sun Microsystems developed Java to be used as a platform for distributed computing. Java was designed to be platform-independent and cross-platform, so that server side applications could run together on different operating systems (Windows, Mac OS, Linux etc.) and architectures (x86, ARM etc.). 

  • Java Is Easy Language To Learn

Java is a relatively easy language to learn. There are many online resources and books that can help you get started. Java also has a large community, so there are plenty of people available to help if you get stuck.

Frameworks and libraries make development easier by providing pre-written code that you can use in your project. Java has a large number of frameworks and libraries, which means you can find one that fits your needs. Some popular Java frameworks and libraries include:

  • Spring – A framework for creating Java applications.
  • Hibernate – A library for managing data in a Java application.
  • Jetty – A web server and servlet container.
  • JavaFX – A library for creating rich user interfaces.
  • Maven – A build automation tool.
  • Jakarta Commons – A collection of common Java components.
  • There are plenty of other Java frameworks and libraries available, so you can find one that fits your specific needs.

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How does Java work?

When you write your program in Java, you write source code which is then compiled into bytecode to run on the JVM (Java Virtual Machine). Java programming language is used to make software applications and computer programs. Many people learn to program computers using Java, but you can also write programs that will run on other computers, like the ones you probably use every day. Java programs are made up of small pieces of code, called “statements.” When you type a statement onto the computer’s keyboard, your computer executes the statement by carrying out the instructions it is given.

A program is written in a language that humans can comprehend. It could be in the form of words, statements, or other non-machine understandable data. For the machine to understand the source code, it must be written in a machine-readable language, sometimes referred to as a machine-level language. As a result, you will need a compiler. The compiler converts human language into a machine-readable format. As a result, a compiler is a computer program that translates source code from one programming language to executable code for another.

Java programming language is used to write apps, websites, and software components. It is a general-purpose language, which means it can be used for a wide variety of applications. Like other programming languages, the Java programming language is built up from individual “parts”, or instructions. The most fundamental part of the Java programming language is the “Hello World” program.

This executable code comprises a set of machine instructions that can be executed directly by the CPU.  Java’s intermediate form is known as Java Byte Code.

Figure: Java source code execution process | Download Scientific Diagram

Step-by-step instructions for running a Java program:

  • The javac compiler builds JAVA programs when they are written.
  • The Java compiler generates .class files or bytecode.
  • The bytecode generated is not executable and must be run through an interpreter. The interpreter is the Java Virtual Machine, and it is the Java Virtual Machine that executes the Bytecode.
  • Finally, the program runs in order to provide the output.

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What does “write once, run anywhere” mean?

Java is designed to run only on the Java Virtual Machine (JVM).Java is a flexible programming language that may be used to create desktop application, mobile apps, and games. Java is statically typed, meaning that the type of data a variable will hold is specified at compile time. Java has a rich library of classes that can be used to develop robust and dynamic applications. Java is an object-oriented programming language with OOPS concepts like inheritance, encapsulation, and polymorphism. Java is also a concurrent language, supporting multithreaded programming.

JAVAs API library that enables developers to build dynamic apps. Java is a platform-independent language, meaning that code written in Java can run on any device that has a JVM installed, which is a specific type of computer program designed to run programs written in the Java programming language. This means that you write the code once, and you can then run it on any platform that supports Java. This includes Windows, Mac, and Linux.

This is possible because Java is a platform-independent language.

What if you are using a computer that doesn’t have a JVM installed, you won’t be able to run programs written in the Java programming language. This is not true. You can use a Java compiler to compile Java programs into bytecode, which can then be run on any machine that has a Java virtual machine installed.

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Is JAVA Still Relevant in Today’s World?

Java is an object oriented programming language that is used in many domains. It is one of today’s most powerful and popular programming languages. This flexibility can be seen in how it can be used to create applications for different domains like web, mobile, desktop, enterprise, and embedded.


Java has been around since 1995, and it has gone through several modifications. It started as a pure object-oriented programming language but soon became more popular as a multi-paradigm programming language because it includes features of object-oriented, imperative, and declarative styles of programming.


The popularity of Java comes from its versatility. It can be used to create applications that range from desktops to mobile devices, web browsers to enterprise applications. The Java Virtual Machine (JVM) also allows Java code to run on multiple operating systems without modification which makes it a versatile language for developers. This flexibility can be seen in how easy it is for Java programmers to extend the functionality of classes with just a few lines of code. 

Java is open source which means that anyone can use it without paying any licensing fee or royalties. However, this also means that Java has to compete with other languages such as C++ or Python which are not open source languages. Despite these challenges, Java remains a popular language for many Java developers and businesses because of its versatility.

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Conclusion

In this blog article, I have covered why Java is platform independent and why it is a popular programming language for both web and desktop applications. Java is well-known for its cross-platform interoperability and object-oriented programming features. The language has become a preferred choice for web application development, as it is easy to learn and deploy, and is also relatively easy to create. Java has been a popular programming language for many years, and is still widely used in many industries. Java is the most widely used programming language in the world. Enroll in 3RI Technologies Java Classroom or Online Training to gain practical knowledge of Java programming from trainer experts.

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