The FizzBuzz problem is a classic programming exercise that tests a developer’s ability to work with loops and conditionals.
The objective is to print the numbers from 1 to 100, but with a twist: for multiples of 3, we print “Fizz” instead of the number,
for multiples of 5, we print “Buzz”, and for multiples of both 3 and 5, we print “FizzBuzz”.
This exercise helps reinforce the understanding of control flow in programming.

Java Code Implementation

public class FizzBuzz {
    public static void main(String[] args) {
        for (int i = 1; i <= 100; i++) {
            if (i % 3 == 0 && i % 5 == 0) {
                System.out.println("FizzBuzz");
            } else if (i % 3 == 0) {
                System.out.println("Fizz");
            } else if (i % 5 == 0) {
                System.out.println("Buzz");
            } else {
                System.out.println(i);
            }
        }
    }
}

Program Structure Explanation

The program consists of a single class named FizzBuzz with a main method, which is the entry point of the Java application.
Here’s a breakdown of the structure:

• for loop: This loop iterates through the numbers 1 to 100. The variable i takes on each value in this range.
• if-else statements: Inside the loop, we check:
  • If the number is divisible by both 3 and 5 using i % 3 == 0 && i % 5 == 0. If true, we print “FizzBuzz”.
  • If the number is divisible only by 3 using i % 3 == 0. If true, we print “Fizz”.
  • If the number is divisible only by 5 using i % 5 == 0. If true, we print “Buzz”.
  • If none of the above conditions are met, we print the number itself.

How to Run the Program

To run the FizzBuzz program, follow these steps:

1. Ensure you have Java Development Kit (JDK) installed on your machine.
2. Open a text editor or an Integrated Development Environment (IDE) like Eclipse or IntelliJ IDEA.
3. Create a new file named FizzBuzz.java.
4. Copy and paste the Java code provided above into the file.
5. Save the file.
6. Open a terminal or command prompt and navigate to the directory where you saved the file.
7. Compile the program by running the command: javac FizzBuzz.java.
8. Run the compiled program using the command: java FizzBuzz.
9. You should see the numbers from 1 to 100 printed with “Fizz”, “Buzz”, and “FizzBuzz” as specified.