Java Program to print triangle Alphabetically

Example:

A
B C
D E F
G H I J

Answer :

public class TriangleAlphabet {

 public static void main(String[] args) 
 {
  
  char c=65;
 
  int rowNum=4;
  for(int i=1;i<=rowNum;i++)
  {
   for(int j=0;j<(i);j++)
   {
    System.out.print(c+" ");
    c++;
   }
   System.out.println();
  }