Converting Capital Letters to Small Letters issue

Question

Half of this program works, meaning it does convert capital letters to small, but then when the letter is already small in the array as shown in the array list, I am having problems printing that out...I am confused.
public class TesingEx3
     public static void main(String[] args)
          char[] arrayLetters = {'A', 'B', 'c', 'D', 'e', 'f', 'G', 'H'};
          // 65 = A, 90 = Z, 97 = a, 122 = z 
          for (int index = 0; index < arrayLetters.length; index++)
               if (arrayLetters[index] >= 65 || arrayLetters[index] <= 70)
                    int letter = arrayLetters[index] + 32;
                    char convertLetter = (char) letter;
                    System.out.print(convertLetter);
                    System.out.println();
               else
                    System.out.print(arrayLetters[index]);
               and then here is my OUTPUT:
----jGRASP exec: java TesingEx3
a
b
d
g
h
----jGRASP: operation complete.

Answer 1

ravindra.alld wrote:
why we make String when we do it with the help of int or byte.
this is more memory efficient.When memory efficiency becomes a legitimate concern, we'll consider it. Until then, the choice is between using a method whose name says exactly what we're trying to accomplish, or treating characters as if they were numbers and doing arithmetic on them with the aid of magic numbers. Let the simple stuff be simple, and save your ingenuity for the hard stuff.