Java Alphabet Pattern 22

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 236 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Alphabet Pattern 22

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

Demo.java

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

💻 Testing the Program

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

Output

        A
      B C
    D E F
  G H I J
K L M N O

🧠 How the Program Works

Let's break down the logic behind the code:

The program defines a class named Demo.
Inside the class, there's a main method, which serves as the entry point for the program.
The program declares two integer variables i and j to be used as loop counters.
Another integer variable k is initialized with the ASCII value of the character 'A', which is 65.
The outer loop (for(i=65; i<=69; i++)) runs from i=65 (ASCII value of 'A') to i<=69 (ASCII value of 'E'), iterating through rows.
Inside the outer loop, there's an inner loop (for(j=69; j>=65; j--)) that runs from j=69 (ASCII value of 'E') to j>=65 (ASCII value of 'A'), iterating through columns.
Within the inner loop, there's an if-else statement to determine whether to print two spaces or a character. If j > i, it means we're in a position before the main diagonal, so two spaces are printed to create the triangular pattern. Otherwise, the else block is executed.
In the else block, System.out.format("%2c", k++) is used to print a character with proper formatting. %2c specifies that a character should be printed in a space of width 2 (right-aligned). The value of k (starting at 65, corresponding to 'A') is printed, and then it's incremented to point to the next character in the ASCII sequence.
After the inner loop completes for each row, System.out.println() is used to move to the next line, creating the triangular pattern effect.
The outer loop continues until i reaches 69 (ASCII value of 'E'), generating the entire pattern.
The program execution ends when both loops complete.

💯 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!