3. Construct a test set that is adequate with respect to LCSAJ coverage criterion for the following program segment. (40 points) 1 2 public static boolean has At Least 3 Letters (String new Password) { char chars[] = new Password. toCharArray(); int nLetters = 0; for (int i = 0; i < chars.length; i++) { if (Character.isLetter ( chars[i] ) ) nLetters++; 3 4 5 6 } 7 8 if (nLetters >= 3 ) 9 return true; 10 else 11 return false; 12 }