Java Number Pattern 35

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 337 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 35

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, k;
  k = 1;
  for(i=1; i<=5; i++)
  {
   for(j=5; j>=1; j--)
   {
    if(j > i)
     System.out.print("   ");
    else
     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 class named Demo.
Inside the class, there's a public static void main(String[] args) method. This is the entry point of the program, where execution begins.
Three integer variables i, j, and k are declared. k is initialized to 1. These variables will be used to control loops and store values for printing.
The outer loop runs from i = 1 to i <= 5, incrementing i by 1 in each iteration. This loop controls the rows of the output pattern.
Inside the outer loop, there's an inner loop that runs from j = 5 to j >= 1, decrementing j by 1 in each iteration. This loop controls the columns of the output pattern.
Within the inner loop, there's a conditional statement (if-else) that checks whether j is greater than i.
If j is greater than i, the program prints three spaces using System.out.print(" "). This is done to create the triangular spacing pattern in the output. The number of spaces decreases as the j value gets closer to i.
If j is not greater than i, it means that the numbers need to be printed in the pattern. The System.out.format("%3d", k++) statement is used to print the value of k with a minimum width of 3 characters, right-aligned. After printing, the value of k is incremented.
After the inner loop completes for a row, the program prints a newline character using System.out.println() to move to the next row for the pattern.
The outer loop continues its iterations until i reaches 5, generating the complete pattern.

💯 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!