Java Number Pattern 36

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 112 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 36

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;
  for(i=5; i>=1; i--) 
  {
   for(j=1; j<i; j++)
    System.out.print("  ");
   for(j=5; j>=i; j--)
    System.out.format("%d ", j);
   System.out.println();
  }
 }
}

💻 Testing the Program

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

Output

🧠 How the Program Works

Let's break down the logic behind the code:

Class Declaration: The program begins with the declaration of a class named Demo.
Main Method: Within the Demo class, there's a public static void main(String[] args) method, which serves as the entry point of the program.
Variable Declaration: Inside the main method, two integer variables are declared: i and j. These variables will be used for controlling loops and printing the pattern.
Outer Loop (i Loop): The first loop is a for loop that iterates from i = 5 down to i = 1. This loop controls the rows of the pattern. In each iteration of this loop, a row is printed.
Inner Loop (j Loop - Leading Spaces): Inside the i loop, there's another for loop with j iterating from 1 to i - 1. This loop is responsible for printing leading spaces in each row. The number of spaces decreases with each iteration of the outer loop.
Inner Loop (j Loop - Numbers): After the leading spaces, there's another for loop with j iterating from 5 down to i. This loop prints the numbers in descending order from 5 to the current value of i.
Print and Formatting: Within the second inner loop, after each number is printed, the System.out.format("%d ", j) statement is used to print the value of j with a space. This creates a space-separated sequence of numbers in each row.
New Line: After both inner loops complete, a System.out.println() statement is used to move to the next line, starting a new row for the next iteration of the outer loop.
Pattern Output: The combination of the three loops and print statements creates a pattern of numbers and spaces that forms a right-angled triangle with descending numbers in each row.

💯 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!