Java Number Pattern 23

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 155 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 23

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, m;
  for(i=5; i>=1; i--)
  {
   for(j=1; j<=i; j++)
    System.out.print(j);
   for(k=i; k<5; k++)
    System.out.print("**");
   for(m=i; m>=1; m--)
    System.out.print(m);
   System.out.println();
  }
 }
}

💻 Testing the Program

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

Output

1234554321
1234**4321
123****321
12******21
1********1

🧠 How the Program Works

Let's break down the logic behind the code:

Class Declaration: The program defines a class named Demo.
Main Method: The main method is the entry point of the program and is executed when the program is run.
Variable Declarations: Four integer variables i, j, k, and m are declared to be used in the loops.
Outer Loop (i Loop): This loop runs from 5 to 1 (inclusive) using the variable i. It controls the number of rows in the pattern.
First Inner Loop (j Loop): This loop runs from 1 to the current value of i. It prints the numbers in ascending order.
Second Inner Loop (k Loop): This loop runs from the current value of i to 4 (inclusive). It prints two asterisks (**) after printing the numbers in the first inner loop. The number of asterisks printed decreases as the value of i decreases.
Third Inner Loop (m Loop): This loop runs from the current value of i to 1 (inclusive). It prints the numbers in descending order.
New Line: After the inner loops complete for each row, a newline character (\n) is printed to move to the next line.
Repeat: The outer loop continues to execute, decrementing the value of i, until i becomes 1.

💯 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!