Advanced Numeric-Alphabet Pyramid
This program prints a pyramid alternating numbers and alphabets in each row.
Problem Statement
Write a Java program that prints a pyramid of 6 rows where each row alternates numbers and alphabets.
Source Code
| 1 | public class AdvancedNumericAlphabetPyramid { |
| 2 | public static void main(String[] args) { |
| 3 | int n = 6, num=1; |
| 4 | char ch='A'; |
| 5 | for(int i=1; i<=n; i++) { |
| 6 | for(int j=i; j<n; j++) System.out.print(" "); |
| 7 | for(int j=1; j<=2*i-1; j++) { |
| 8 | if(j%2==1) System.out.print(num++ + " "); |
| 9 | else { |
| 10 | System.out.print(ch + " "); |
| 11 | ch++; |
| 12 | if(ch>'Z') ch='A'; |
| 13 | } |
| 14 | } |
| 15 | System.out.println(); |
| 16 | } |
| 17 | } |
| 18 | } |
Program Output
1
2 A 3
4 B 5 C 6
7 D 8 E 9 F 10
11 G 12 H 13 I 14 J
15 K 16 L 17 M 18 N 19 O
Explanation
Instead of switching symbol type per row, the position within the row itself (j%2) decides whether a number or an alphabet is printed, so numbers and alphabets alternate horizontally in each row of the pyramid.