Example: Centered Symmetric Alphabet Pyramid in Java

// Centered Symmetric Alphabet Pyramid
import java.util.Scanner;

// Main class containing the entry point of the program
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        // Step 1: Get the number of rows from the user
        System.out.print("Enter the number of rows for the pyramid: ");
        int rows = scanner.nextInt();

        // Step 2: Outer loop for each row
        for (int i = 0; i < rows; i++) {
            // Step 3: Inner loop to print leading spaces for centering
            for (int j = 0; j < rows - 1 - i; j++) {
                System.out.print(" ");
            }

            // Step 4: Inner loop to print increasing alphabets (A, B, C...)
            for (int k = 0; k <= i; k++) {
                System.out.print((char) ('A' + k));
            }

            // Step 5: Inner loop to print decreasing alphabets (..., C, B)
            for (int l = i - 1; l >= 0; l--) {
                System.out.print((char) ('A' + l));
            }

            // Step 6: Move to the next line after each row is complete
            System.out.println();
        }

        scanner.close();
    }
}