Setup JDK and IDE
Before you start coding, you need to set up your development environment. Think of it as setting up your kitchen before cooking a feast. We need the Java Development Kit (JDK) and a good text editor or Integrated Development Environment (IDE).
Step 1: Install JDK
Download the latest LTS version of JDK from Oracle or OpenJDK. For beginners, Oracle JDK or Amazon Corretto are good choices.
# Check if Java is installed
java -version
javac -version
Step 2: Choose an IDE
- IntelliJ IDEA – Most popular for Java
- Eclipse – Free and powerful
- VS Code – Lightweight with Java extensions
- Online compilers – For quick experiments (Replit, JDoodle)
Step 3: Verify Installation
Open a terminal and run
java -version. You should see the version details. Then, create a simple Java file and compile it:# Save as Hello.java
javac Hello.java
java Hello
Two Minute Drill
- Install JDK (Java Development Kit) from Oracle or OpenJDK.
- Choose an IDE: IntelliJ, Eclipse, or VS Code.
- Verify installation with `java -version` and `javac -version`.
- Your environment is ready for DSA!
Need more clarification?
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