How to Write Your First Java Program in 5 Minutes

First Java Program Tutorial

Are you excited to learn Java but feeling overwhelmed about where to start? Don’t worry—I’ve got you covered. In this First Java Program Tutorial, I’ll walk you through how to write, compile, and run your very first Java program in just 5 minutes.

Whether you’re a complete beginner or someone who’s curious about coding, this is your quick-start guide to becoming a Java coder.

First Java Program Tutorial in 5 Minutes

🚀 Why Learn Java?

Before we dive into your first Java program, let’s quickly understand why Java is such a popular choice for beginners and professionals alike:

  • Java is platform-independent (write once, run anywhere)
  • It’s used in Android apps, web development, and enterprise software
  • The syntax is beginner-friendly yet powerful
  • Huge community support and job opportunities

So, let’s jump right into it.

🖥 Step 1: Install Java JDK (Java Development Kit)

To start coding in Java, you first need to install Java JDK on your computer. The JDK provides the tools needed to compile and run Java programs.

If you haven’t done this yet, check out our detailed tutorial here:

👉 How to Install Java JDK on Windows, Mac, or Linux

🗂 Step 2: Set the Java Path

After installing Java, you’ll also need to set the Java PATH so that your computer knows where to find Java when you run commands in the terminal.

Don’t worry—I’ve created an easy guide for this too:

👉 How to Set Java Path in Windows

Once your Java setup is ready, we can write your First Java Program Tutorial code.

🖋 Step 3: Writing Your First Java Program

Let’s get to the fun part: writing your first Java code. Open your Notepad and paste program below and save the file as HelloWorld.java in C drive or any other directory.

Here’s a simple program that prints “Hello, World!” on the screen.

✨ Example: First Java Program

public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}

🔎 Understanding the Code (For Beginners)

Let’s break this down in simple terms:

CodeMeaning
public class HelloWorldDeclares a class named HelloWorld
public static void main(String[] args)The starting point of every Java program
System.out.println("Hello, World!")Prints Hello, World! to the screen

That’s it! Doesn’t it feel good to see your first line of Java?

🏃 Step 4: How to Compile and Run the Java Program

👉 Compile the Program

  1. Open your terminal (or command prompt)
  2. Navigate to the directory where your file is saved for example if you save the file in C:\Java Tutorial
  3. Type:
bash
javac HelloWorld.java

If everything is okay, this will create a HelloWorld.class file.

👉 Run the Program

Next, type:

bash
java HelloWorld

✅ Output:

Hello, World!

Congratulations! 🎉 You just wrote and executed your first Java program.

🤔 Troubleshooting Tips

  • Error: ‘javac’ not recognized – Check your Java PATH is set correctly.
  • File not found – Ensure your terminal is in the correct folder.
  • Typos – Java is case-sensitive! Double-check your spelling.

🧱 What’s Next After This First Java Program Tutorial?

Writing your first Java program is just the beginning. Once you’re comfortable with this, you can explore topics like:

Stay connected with JavaCody.com for more beginner-friendly guides, advanced tutorials, and coding tips.

💡 Final Thoughts on Writing Your First Java Program

Learning Java may seem like a big journey, but starting with small steps like this makes it achievable. This First Java Program Tutorial is designed to build your confidence so you can start experimenting on your own.

Remember: Practice makes progress. The more programs you write, the easier it gets.

For more Java programming tutorials, bookmark JavaCody.com and keep coding! Download Java for Oracle official website

Happy coding! 👨‍💻👩‍💻

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