public void printTwos(String str)
Description: This method prints two letters from the String starting at with the first two letters and ending with the last two.
| Method Call | return value/output | 
| printTwos(“abcdef”) | “ab” “bc” “de” “ef” | 
public void printReverse(String str)
Description: This method print every letter in reverse and on a new line.
| Method Call | return value/output | 
| printReverse(“abcd”) | “d” “c” “b” “a” | 
| printReverse(“thefoo”) | “o” “o” “f” “e” “h” “t” | 
public void printTwoReverse(String str)
					Description: This method print every 2 letter in reverse and on a new line.
| Method Call | return value/output | 
| printTwoReverse(“abcd”) | “dc” “cb” “ba” | 
| printTwoReverse(“thefoo”) | “oo” “of” “fe” “eh” “ht” | 
public void printTwoReverseAgain(String str)
Description: This method print every 2 letter in reverse and on a new line and with no overlap of letters
| Method Call | return value/output | 
| printTwoReverseAgain(“abcd”) | “dc” “ba” | 
| printTwoReverseAgain(“thefoo”) | “oo” “fe” “ht” |