Java Number Pattern 56

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 175 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 56

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

💻 Testing the Program

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

Output

        1
      1 2 1
    1 2 3 2 1
  1 2 3 4 3 2 1
1 2 3 4 5 4 3 2 1

🧠 How the Program Works

Let's break down the logic behind the code:

The program defines a class named Demo.
Inside the class, the main method is declared as public static void main(String[] args).
The program uses five integer variables: i, j, k, m, and n. These variables are used to control the loops and print numbers.
The outer loop (for(i=1; i<=5; i++)) runs for i from 1 to 5. This loop controls the number of rows in the pattern.
Inside the outer loop:
1. The first nested loop (for(j=5; j>=i; j--)) is responsible for printing spaces before the numbers. The number of spaces decreases as i increases, effectively right-aligning the numbers.
2. The second nested loop (for(k=1; k<=i; k++)) prints increasing numbers starting from 1 up to the value of i.
3. The value of k is used to calculate the value of n (which is k - 1) that will be used later to print decreasing numbers.
4. The third nested loop (for(m=1; m<i; m++)) prints decreasing numbers from n down to 1. The value of n is decremented before printing in each iteration.
5. After printing spaces, increasing numbers, and decreasing numbers, System.out.println() is used to move to the next line for the next row of the pattern.
The entire process is repeated for each value of i, creating the desired 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!