Java Number Pattern 58

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 164 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 58

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;
  // First Part
  for(i=1; i<=5; i++)
  {
   for(j=5; j>=1; j--)
   {
    if(i == j)
     System.out.print(j);
    else
     System.out.print(" ");
   }
   for(k=2; k<=5; k++)
   {
    if(i == k)
     System.out.print(k);
    else
     System.out.print(" ");
   }
   System.out.println(); 
  }
  // Second Part
  for(i=4; i>=1; i--)
  {
   for(j=5; j>=1; j--)
   {
    if(i == j)
     System.out.print(j);
    else
     System.out.print(" ");  
   }
   for(k=2; k<=5; k++)
   {
    if(i == k)
     System.out.print(k);
    else
     System.out.print(" ");
   }
   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 defines a class named Demo.
Main Method: The main method serves as the entry point for the program. It initializes three integer variables: i, j, and k.
First Part (Top Half of Pattern): The program uses nested loops to create the top half of the pattern (before the space in the middle).
1. The outer loop (for(i=1; i<=5; i++)) iterates from i = 1 to i = 5. This controls the number of rows in the pattern.
2. The first inner loop (for(j=5; j>=1; j--)) iterates from j = 5 to j = 1. This controls the printing of numbers decreasing from 5.
  - Inside this loop, there's a conditional check (if(i == j)) that prints the value of j if i is equal to j, otherwise, it prints a space.
3. The second inner loop (for(k=2; k<=5; k++)) iterates from k = 2 to k = 5. This controls the printing of numbers from 2 to 5.
  - Inside this loop, there's a conditional check (if(i == k)) that prints the value of k if i is equal to k, otherwise, it prints a space.
4. After both inner loops, a newline is printed using System.out.println();, moving to the next row.
Second Part (Bottom Half of Pattern): Similar to the first part, this section uses nested loops to create the bottom half of the pattern (after the space in the middle).
1. The outer loop (for(i=4; i>=1; i--)) iterates from i = 4 to i = 1. This controls the number of rows in the bottom half.
2. Inside the loops, the same structure is followed: printing numbers in decreasing order and spaces.
Pattern Output: When you run the program, it will generate the pattern of numbers and spaces. The final output will be a diamond pattern where the top and bottom halves are mirror images of each other, with a central space separating them.

💯 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!