Add blog - java platform independent programming language

Author: gauravkukade

_posts/java-basic/2023-11-04-java-platform-independant.md

@@ -0,0 +1,61 @@
+```
+layout: post
+title:  "Java: The Platform-Independent Programming Language"
+author: gaurav
+categories: [ Java, Core Java ]
+featured: false
+toc: true
+description: "In this article, we will learn about the Java's platform independancy and how java achieves it."
+```
+
+In this article, we will learn about the Java's platform independency and how java achieves it.
+
+## Introduction
+
+A software programs are very specific to the hardware and operation systems it is written on. When we write a piece of code on a platform, it will compile and run on that sample platform. But for the diversity and portability of the code or software it is important that it should run on other platforms too. 
+
+But In practicality their are some limitations to it. Some programming languages are platform dependent that means the code written on the a platform can run on that platform only. For example C.
+
+But Java is an exception to it.
+
+> Java is a platform independent programming language.
+>
+> Java achieves platform independence with the help of **bytecode** and **Java Virtual Machine**.
+
+Let's see what does it mean by platform independence.
+
+## What is Platform Independence?
+
+If a code written on one platform can run on any other platform, then it is platform independence.
+
+In Java programming language a program written on a platform can be run on any other platform, provided a JVM is installed.
+
+So, in java we can **Write Once Run Anywhere (WORA)**.
+
+## How Java Achieves Platform Independence?
+
+When a developer writes a program it is in human readable format. i.e. `.java` file.
+
+When we compile it, the java compiler converts it to the **bytecode**. i.e. `.class` file. Bytecode is not a native code for machine. It can be understood by JVMs only. 
+
+Then J**ava Virtual Machine** (JVM) executes the bytecode. At the end, we can see the output of the program.
+
+Let's take an example to understand the process. Assume, the below code is in a HelloWorld.java file.
+
+```java
+public class HelloWorld {
+    public static void main(String[] args) {
+        System.out.println("Hello World!");
+    }
+}
+```
+
+![An image showing How Java Achieves Platform Independance.](J:\code\repos\coderolls-blog\assets\images\2023-11-02\java-platform-independent.png)
+
+## Conclusion
+
+Java Programming language is a platform independent. We can **Write Once Run Anywhere (WORA)**.
+
+Java Virtual Machine (JVM) is not platform independent. Different Operating systems have different types of executable instructions. So there are different JVMs for different OS.
+
+All JVMs can understand the bytecode and converts it to respective executable instructions. This makes Java a platform independent language.