What is Java - Hands-On Activity

What is Java

📖 Scenario: Imagine you want to learn a popular programming language used to create many types of software, from mobile apps to large systems.

🎯 Goal: You will write simple Java code to understand what Java is and see a basic program that prints a message.

📋 What You'll Learn

Create a Java class named WhatIsJava

Add a main method inside the class

Print the message "Java is a popular programming language." to the console

💡 Why This Matters

🌍 Real World

Java is used to build mobile apps, games, websites, and big business software.

💼 Career

Knowing Java opens doors to many programming jobs in software development.

1

Create the Java class

Create a public Java class called WhatIsJava.

Java

// Your code here

Need a hint?

In Java, every program starts with a class. Use public class WhatIsJava { }.

2

Add the main method

Inside the WhatIsJava class, add the public static void main(String[] args) method.

Java

public class WhatIsJava {
    // Your code here
}

Need a hint?

The main method is the entry point of a Java program. Use public static void main(String[] args).

3

Print a message

Inside the main method, write a line to print "Java is a popular programming language." using System.out.println.

Java

public class WhatIsJava {
    public static void main(String[] args) {
        // Your code here
    }
}

Need a hint?

Use System.out.println("message") to print text to the console.

4

Run and see the output

Run the program and print the output to the console.

Java

public class WhatIsJava {
    public static void main(String[] args) {
        System.out.println("Java is a popular programming language.");
    }
}

// Run the program to see the output

Need a hint?

When you run the program, the message should appear in the console.