Java Number Pattern 38

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 149 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 38

Here`s a program that prints the above number pattern using Java Programming:

Demo.java

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public class Demo
{
 public static void main(String[] args)
 {
  int i, j;
  int k = 1;
  for(i=1; i<=5; i++)
  {
   for(j=5; j>=i; j--)
    System.out.format("%3d", k++);
   System.out.println();
  }
 }
}

💻 Testing the Program

When you run the above program, it will print the following output:

Output

 1  2  3  4  5
 6  7  8  9 
10 11 12
13 14 
15

🧠 How the Program Works

Let's break down the logic behind the code:

The program starts with the declaration of a Java class named Demo.
Inside the class, there's the main method, which serves as the entry point for the program.
Three integer variables are declared: i, j, and k.
- i and j are loop control variables for the nested loops.
- k is initialized to 1 and is used to generate the values to be printed.
The outer loop: for(i=1; i<=5; i++) - This loop will iterate i from 1 to 5 (inclusive).
Inside the outer loop, there's an inner loop: for(j=5; j>=i; j--). This loop iterates j from 5 down to the current value of i.
Inside the inner loop, there's a statement: System.out.format("%3d", k++);. This statement uses the System.out.format method to print the value of k right-aligned in a field of width 3. The %3d format specifier is used to ensure that the printed value occupies at least 3 characters, with leading spaces if necessary. After printing the value, k is incremented.
After the inner loop finishes, there's a System.out.println(); statement. This prints a newline character, moving the printing to the next line. This is used to start a new line after each row of numbers is printed.
The k variable is incremented each time a value is printed. This ensures that the printed values are consecutive.
The program will continue this pattern until the outer loop completes its iterations.

💯 Tips for Enhancement:

Explore the versatility of this pattern by adjusting its parameters. Whether you increase or decrease the size, tweak the spacing, or modify the characters used, each change opens up a world of possibilities, allowing you to customize and create your unique visual effects.

✔ Conclusion:

Creating visually appealing patterns is not only a fun endeavour but also a great way to enhance your programming or design skills. We hope this tutorial has inspired you to explore the world of creative coding. Share your creations with us, and let your imagination run wild!

🤗 Closing Call-to-Action:

We'd love to see your unique interpretations of the number pattern. Share your creations in the comments below, and don't hesitate to reach out if you have any questions or suggestions for future tutorials. Happy coding!