Java Number Pattern 42

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 410 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 42

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;
  for(i=1; i<=5; i++)
  {
   for(j=1; j<=5; j++)
   {
    if(i == 1 || i == 5 || j == 1 || j == 5)
     System.out.print("1 ");
    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:

The program defines a class named Demo.
The main method is the entry point of the program and is declared as public static void main(String[] args).
Inside the main method, two integer variables i and j are declared without initialization.
The outer loop for(i=1; i<=5; i++) runs from i = 1 to i = 5, iterating through rows of the pattern.
Inside the outer loop, an inner loop for(j=1; j<=5; j++) runs from j = 1 to j = 5, iterating through columns of the pattern.
Within the inner loop, there's an if condition that checks whether the current position corresponds to the border of the pattern. The condition i == 1 || i == 5 || j == 1 || j == 5 checks if the current row is the first or fifth row or if the current column is the first or fifth column.
If the condition in the if statement is true, the program prints a "1" followed by a space using System.out.print("1 ");.
If the condition in the if statement is false, meaning the current position is inside the border, the program prints two spaces using System.out.print(" ");.
After completing the inner loop for each row, the program adds a newline character using System.out.println(); to move to the next line and start a new row.
This process repeats for each row until the outer loop completes, 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!