Java Number Pattern 55

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 194 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 55

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, k, res;
  for(i=1; i<=5; i++)
  {
   k = 4;
   res = i;
   for(j=i; j<i+i; j++)
   {
    if(i == j)
     System.out.print(j +" ");
    else 
    {
     res = res + k;
     System.out.print(res +" ");
     k--;
    }
   }
   System.out.println();
  }
 }
}

💻 Testing the Program

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

Output

1
2 6
3 7 10
4 8 11 13
5 9 12 14 15

🧠 How the Program Works

Let's break down the logic behind the code:

The program defines a class named Demo.
The public static void main(String[] args) method is the entry point of the program.
Inside the main method:
- Several integer variables are declared: i, j, k, and res. These will be used to control the loops and store intermediate results.
The outer loop (for(i=1; i<=5; i++)) runs from i = 1 to i = 5 (inclusive). This loop controls the rows of the pattern.
Inside the outer loop:
- k is set to 4. This variable will be used to adjust the value added to res.
- res is set to the value of i, which will be the starting number for each row.
The inner loop (for(j=i; j<i+i; j++)) runs from j = i to j = 2 * i - 1 (inclusive). This loop controls the columns of the pattern.
Inside the inner loop:
- An if condition checks if i is equal to j. If true, it prints the value of j. This will print the first number in each row.
- If the if condition is false, it means we're printing the subsequent numbers in the row.
- res is updated by adding the value of k to it. Then, the updated res is printed.
- The value of k is decremented by 1.
After the inner loop finishes, a line break is printed using System.out.println();. This moves the printing to the next row for the pattern.
The program repeats the above steps for each row (i.e., for each value of i from 1 to 5).

💯 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!