*☕ Java Developer Basic Tools* Here’s what every beginner should know: *1. JDK, JRE, JVM* - *JDK (Java Development Kit):* Contains tools to write, compile, and debug Java programs (includes JRE + compiler). - *JRE (Java Runtime Environment):* Only required to run Java programs. It contains the JVM and libraries. - *JVM (Java Virtual Machine):* The engine that runs Java bytecode on your machine. Platform-independent. *2. Writing & Running Java Code* - *.java* files: Source code written by the developer. - *.class* files: Bytecode generated after compilation. - To compile: `javac MyClass.java` - To run: `java MyClass` *3. IDEs (Integrated Development Environments)* - *IntelliJ IDEA* (most popular), *Eclipse*, *NetBeans* - Features: Syntax highlighting, debugging, auto-completion, project navigation. *4. Command Line Compilation* Good for understanding how Java works behind the scenes. Example: ```bash javac HelloWorld.java java HelloWorld ``` *5. Package Structure* Organize files in folders using the `package` keyword: ```java package com.myproject.utils; ``` 🔰 *Master these tools early—it’ll make the rest of your learning journey much smoother!* *React ❤️ for more*!