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Java is a high-level, object-oriented programming language designed for platform independence. Its core principle, Write Once, Run Anywhere (WORA), allows Java programs to run on any device with a Java Virtual Machine (JVM). Here's an overview of how Java operates:
Compilation and Execution Process
Source Code: Java programs are written in .java files using a text editor or an Integrated Development Environment (IDE).
Compilation: The Java compiler (javac) converts the source code into bytecode, a platform-independent intermediate representation stored in .class files.
Java Virtual Machine (JVM): The JVM interprets or compiles the bytecode into native machine code specific to the underlying hardware and operating system.
Execution: The JVM executes the machine code, enabling the program to run.
For example, a simple "Hello, World!" program in Java:
public class HelloWorld {public static void main(String[] args) {System.out.println("Hello, World!");}}Copied!✕Copy Let’s Understand Java. How Java Works? | by Fasrin …
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