ArrayList al = new ArrayList();
        for(int i = 1; i <=10; i++)
        {
            al.add((char)(Math.random()*26+65));
        }
        Iterator i = al.iterator();
        while(i.hasNext())
            System.out.println(i.next());

        //Linked LIST ArrayList <String>
        //.remove()
        //.hasNext()
        //.next()
        //.contains()

        ArrayList<Double> arr = new ArrayList<Double>();
        for(int i1 = 0; i1 < 5; i1++) {
            arr.add(Math.random()*50+1);