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Java Program to Print Character Pattern

A Java program to print a character pattern.

Problem Description

Write a Java program to print a character pattern like: A A B A B C A B C D A B C D E

Code

CharacterPattern.java
public class CharacterPattern {
    public static void main(String[] args) {
        int rows = 5;

        for (int i = 1; i <= rows; ++i) {
            for (int j = 1; j <= i; ++j) {
                System.out.print((char)(j + 64) + " ");
            }
            System.out.println();
        }
    }
}

Output

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

Explanation

  1. ASCII: 65 is 'A'. So j + 64 gives 65 ('A') when j is 1.
  2. Casting: Cast the integer result to char.

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