Java Number Pattern 30

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 202 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 30

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;
  for(i=1; i<=5; i++)
  {
   for(j=5; j>=1; j--)
   {
    if(j > i)
     System.out.print(" ");
    else
     System.out.print(j);  
   }
   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 public class named Demo.
Inside the class, there is a main method, which serves as the entry point of the program. It accepts an array of strings (args) as its parameter.
Two integer variables, i and j, are declared without any initial values.
The outer loop for(i=1; i<=5; i++) runs from i=1 to i=5 and controls the rows of the pattern.
Inside the outer loop, there is an inner loop for(j=5; j>=1; j--) that runs from j=5 to j=1 and controls the columns of the pattern.
In each iteration of the inner loop, there is a conditional statement:
1. If j (the column value) is greater than i (the row value), it means the current position should be filled with a space. So, System.out.print(" "); is executed.
2. If j is less than or equal to i, it means the current position should be filled with the value of j. So, System.out.print(j); is executed.
After the inner loop completes, a newline character is printed using System.out.println();. This moves the printing cursor to the next line, preparing for the next row.
The outer loop continues until i reaches 5, thus printing the pattern for all rows.
Once both loops complete, the program exits the main method and terminates.

💯 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!