software testing

hand written control flow diagram is needed please

Q2: Solve the following problem: The following source code returns the longest substring that appears at both the beginning and end of the string without overlapping. For example: sameEnds("abXab") returns "ab". 01 public String sameEnds (String string) ( 02 int len = string.length () ; 03 String fin = "n; 04 String tmp = " "; 05 06 for (int 1=0;1