Question

I know this is silly but i am stuck this problem.i have try this but
not get desired result so i am ask this question: My question is

scenerio:1

  ArrayList<String> f = new ArrayList<String>();
        f.add("a");
        f.add("b");
        f.add("c");

        ArrayList<String> s = new ArrayList<String>();
        s.add("a");
        s.add("a");
        s.add("a");
        s.add("b");
        s.add("b");
        s.add("b");
        s.add("c");
        s.add("c");
    s.add("c");

Now i want common value first arraylist and second arraylist
And i want result is like:

ArrayList<String> temp = new ArrayList<String>();//this is temp arraylist to store but here i didt use it

   ___
    a
   ___
    a
    a
    a
   ___
    b
   ___
    b
    b
    b
   ___
    c
   ___
    c
    c
    c

and saw like this .how can i solve this freinds Thanks in Advance freinds.

Answer 1

temp.addAll(f);
temp.addAll(s);
Collections.sort(temp);