software testing

please i need the drawing of control flow diagram

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