Why Java is widely used - See It in Action

Why Java is widely used

📖 Scenario: Imagine you are explaining to a friend why Java is a popular programming language used by many companies and developers worldwide.

🎯 Goal: You will create a simple Java program that lists some key reasons why Java is widely used.

📋 What You'll Learn

Create a String array called reasons with exactly 5 reasons why Java is widely used

Create an integer variable called count and set it to 0

Use a for loop with variable i to iterate over the reasons array

Print each reason on a new line with its number starting from 1

💡 Why This Matters

🌍 Real World

Java is used in many applications like mobile apps, web servers, and games. Knowing why it is popular helps beginners understand its importance.

💼 Career

Many companies use Java for their software. Understanding its key features helps in interviews and real projects.

1

Create the reasons array

Create a String array called reasons with these exact entries: "Platform Independent", "Object-Oriented", "Rich API", "Large Community", "Robust and Secure"

Java

# Create the String array reasons with the given entries
// Your code here

Need a hint?

Use curly braces {} to list the reasons inside the array.

2

Add a counter variable

Create an integer variable called count and set it to 0 inside the main method after the reasons array

Java

public class JavaReasons {
    public static void main(String[] args) {
        String[] reasons = {"Platform Independent", "Object-Oriented", "Rich API", "Large Community", "Robust and Secure"};
        // Create count variable and set to 0
        // Your code here
    }
}

Need a hint?

Use int count = 0; to create the counter variable.

3

Loop through the reasons

Use a for loop with variable i to iterate over the reasons array from 0 to reasons.length - 1. Inside the loop, increase count by 1 each time.

Java

public class JavaReasons {
    public static void main(String[] args) {
        String[] reasons = {"Platform Independent", "Object-Oriented", "Rich API", "Large Community", "Robust and Secure"};
        int count = 0;
        // Add a for loop to iterate over reasons and increase count
        // Your code here
    }
}

Need a hint?

Use for (int i = 0; i < reasons.length; i++) and inside the loop write count++;.

4

Print the reasons with numbers

Inside the for loop, print each reason with its number starting from 1 using System.out.println. The format should be: "1. Platform Independent", "2. Object-Oriented", and so on.

Java

public class JavaReasons {
    public static void main(String[] args) {
        String[] reasons = {"Platform Independent", "Object-Oriented", "Rich API", "Large Community", "Robust and Secure"};
        int count = 0;
        for (int i = 0; i < reasons.length; i++) {
            count++;
            // Print the number and reason here
            // Your code here
        }
    }
}

Need a hint?

Use System.out.println(count + ". " + reasons[i]); inside the loop to print each reason with its number.