#01 Java Setup Guide – Install JDK, Configure Environment Variables & Run in VS Code (2025)

Published: 04 May 2025
on channel: Web Tech Knowledge

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Learn how to install Java JDK, set up environment variables, and configure Visual Studio Code for Java development. Follow this step-by-step guide to start coding in Java efficiently!

📌 Step-by-Step Tutorial
1️⃣ Install Java JDK
✅ Download JDK (Latest LTS Version)

Visit Oracle JDK or OpenJDK

Choose the correct OS (Windows/macOS/Linux)

Run the installer

✅ Verify Installation

bash
java -version
javac -version
(Should display installed Java version)

2️⃣ Set Up Environment Variables (Windows)
✅ Add JAVA_HOME

Open System Properties → Environment Variables

Add a new variable:

Variable name: JAVA_HOME
Variable value: C:\Program Files\Java\jdk-17.0.1
✅ Update PATH

Edit the Path variable and add:

%JAVA_HOME%\bin
✅ Verify Setup

bash
echo %JAVA_HOME%
(Should return the JDK path)

3️⃣ Configure VS Code for Java
✅ Install Extensions

Java Extension Pack (Microsoft)

Extension Pack for Java (Red Hat)

✅ Create a Java Project

Open VS Code → Ctrl+Shift+P → "Java: Create Java Project"

Select project type (e.g., "No build tools")

✅ Run Your First Program

Create Main.java

java
public class Main {
public static void main(String[] args) {
System.out.println("Hello, Java!");
}
}
Press F5 to run

🚀 Pro Tips
✔ Use OpenJDK for free & open-source Java
✔ Check PATH if java commands don’t work
✔ Install Code Runner for quick execution

#Java #Programming #VSCode #JDK #Coding

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