Question

Write a program in Java to display the following pattern:

A
ab
ABC
abcd
ABCDE 

Answer 1

public class Q12a{
public static void main(String args[])
{
String s = "abcde"; 
System.out.println("\n\n");

for (int i = 0; i <= 4; i++) 
{ for (int j = 0; j <= i; j++) 
{ if (i % 2 = 0)
System.out.print(Character.toUpperCase(s.charAtG))); 
else
System.out.print(Character.toLowerCase(s.charAtU))); 
}
System. out. println();
}