// returns a string will all values from list
public String toString() {
String output = "";
HistoNode toCopy = front;
while (toCopy.getNext() != null) {
output += toCopy.getLetter() + " - " + toCopy.getLetterCount() + " ";
toCopy = toCopy.getNext();
}
return output;
}
// returns the index pos of let in the list if let exists
public int indexOf(char let) {
int count = 0;
HistoNode copy = front;
while (copy != null) {
if (copy.getLetter() == let) {
return count;
} else {
copy = copy.getNext();
count++;
}
}
return -1;
}