Java Number Pattern 57

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 157 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 57

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;
  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();
  }
 }
}

💻 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:

public class Demo: This declares the class named Demo.
public static void main(String[] args): This is the main method where the execution of the program begins. It takes an array of strings args as an argument, which can be used to pass command-line arguments to the program.
Inside the main method, three integer variables are declared: i, j, and k. These variables will be used as loop control variables.
The outer loop for(i = 1; i <= 5; i++) runs for i from 1 to 5 (inclusive). This loop controls the rows of the pattern.
Inside the outer loop, there are two nested loops for printing the left and right halves of each row of the pattern.
The first nested loop, for(j = 5; j >= 1; j--), iterates from j = 5 to j = 1 (inclusive) in reverse. It is responsible for printing the left half of each row. If i is equal to j, it prints the value of j, otherwise, it prints a space.
The second nested loop, for(k = 2; k <= 5; k++), iterates from k = 2 to k = 5 (inclusive). It is responsible for printing the right half of each row. If i is equal to k, it prints the value of k, otherwise, it prints a space.
After both nested loops complete, System.out.println() is used to move to the next line. This creates a new line after each row of the pattern.
The outer loop continues for each value of i, and the entire pattern is printed in the console.

💯 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!