Java Number Pattern 27

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 94 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 27

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

Demo.java

Copied

public class Demo
{
 public static void main(String[] args)
 {
  int i, j, k;
  for(i=1; i<=5; i++)
  {
   for(j=1; j<=i; j++)
    System.out.print(j);
   for(k=i-1; k>=1; k--)
    System.out.print(k);
   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:

The program defines a class named Demo.
Inside the class, there is a main method which is the entry point of the program.
Three integer variables i, j, and k are declared to be used as loop counters.
The outer loop (for (i = 1; i <= 5; i++)) runs for i from 1 to 5 (both inclusive) to control the number of rows in the pattern.
Inside the outer loop, there are two nested inner loops:
1. The first inner loop (for (j = 1; j <= i; j++)) runs for j from 1 to the current value of i. It prints the numbers in increasing order.
2. The second inner loop (for (k = i - 1; k >= 1; k--)) runs for k from i - 1 to 1. It prints the numbers in decreasing order.
After both inner loops finish executing, the program prints a newline character (System.out.println()) to move to the next line before starting the next row of the pattern.
The pattern formed by printing the numbers in increasing and then decreasing order creates a pyramid-like structure.

💯 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!