are yo
you u
how nhoware
alan arala
dear de

list1 = getPermutations("",send1);
            list2 = getPermutations("",send2);

     ArrayList<String> duplicateValues = new ArrayList<String>();
            for (int i = 0; i < list1.size(); i++) {
                if (list2.contains(list1.get(i))) {
                    duplicateValues.add(list1.get(i));
                }

    private static ArrayList<String> getPermutations(String currentResult, ArrayList<String> possibleChars) {
            ArrayList<String> result = new ArrayList<>(possibleChars.size());
            for (String append : possibleChars) {
                String permutation = currentResult + append;



                result.add(permutation);
                if (possibleChars.size() > 0) {

                    ArrayList<String> possibleCharsUpdated = (ArrayList) possibleChars.clone();

                    possibleCharsUpdated.remove(new String(append));

                    result.addAll(getPermutations(permutation, possibleCharsUpdated));
                }
            }
            return result;
        }