Tutorials

Java Alphabet Pattern 23

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 107 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Alphabet Pattern 23

Here`s a program that prints the above alphabet pattern using Java Programming:

Demo.java

Copied

public class Demo 
{
 public static void main(String[] args) 
 {
  int i, j;
  for(i=69; i>=65; i--)
  {
   for(j=65; j<i; j++)
    System.out.print("  ");
   for(j=69; j>=i; j--)
    System.out.format("%2c", j);
   System.out.println();
  }
 }
}

💻 Testing the Program

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

Output

        E
      E D
    E D C
  E D C B
E D C B A

🧠 How the Program Works

Let's break down the logic behind the code:

The program defines a class named Demo.
Inside the Demo class, there's a main method, which is the entry point of the program.
The program declares two integer variables i and j, which will be used as loop counters.
The outer loop runs from i = 69 to i >= 65, decreasing i by 1 in each iteration. This loop controls the number of rows in the pattern.
Inside the outer loop, there are three nested loops:
1. The first nested loop (for (j = 65; j < i; j++)) is responsible for printing spaces before the characters in each row. The number of spaces printed is determined by the value of i. It starts with j being 65 (ASCII value of 'A') and increments j until it's less than i.
2. The second nested loop (for (j = 69; j >= i; j--)) prints the characters in descending order. It starts with j being 69 (ASCII value of 'E') and decrements j until it's greater than or equal to i. It prints the characters using System.out.format("%2c", j) which formats the character output to take up two spaces.
3. After both nested loops, a newline character (System.out.println()) is printed to move to the next line before the next iteration of the outer loop.
The outer loop continues to execute, and as i decreases, the number of spaces printed before the characters decreases and the characters themselves change, resulting in the desired pattern.
The output of the program is a pattern of characters forming a triangle-like shape. The pattern consists of spaces and characters from the ASCII values 'E' to 'A'.

💯 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 alphabet 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!