android - How to add an item multiple times in a ListViewActivity from another ListViewActivity -

this original listview class select item list want select same item 4 times, in activity should add item 4 times. can add 1 time in activity. have used sharedpreferences adding. can me how can store value 4 times?any tips appreciated :((( thanks

//this class select item

public class alcohol extends activity { private list<alcohols> alcohol = new arraylist<alcohols>();  string wine;     string beer; sharedpreferences somedata; public static string filename = "mysharedstring"; @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);      setcontentview(r.layout.activity_alcohol);     somedata = getsharedpreferences(filename, 0);     alcohollist();     alcohollistview();     registerclickcallback(); }  private void registerclickcallback() {     // todo auto-generated method stub     listview list = (listview) findviewbyid(r.id.alcohollistview);     list.setonitemclicklistener(new adapterview.onitemclicklistener() {          @override         public void onitemclick(adapterview<?> parent, view viewclicked,                 int position, long id) {              switch (position) {             case 0:                 wine = "wine";                 sharedpreferences.editor editor0 = somedata.edit();                 editor0.putstring("sharedstring4", wine);                 editor0.commit();                                     otheractivity("list");                 break;              case 1:                     beer = "beer";                 sharedpreferences.editor editor1 = somedata.edit();                 editor1.putstring("sharedstring5", beer);                 editor1.commit();                                     otheractivity("list");                 break;             } });  }  private void alcohollistview() {     // todo auto-generated method stub     arrayadapter<alcohol> adapter = new mylistadapter();     listview list = (listview) findviewbyid(r.id.alcohollistview);     list.setadapter(adapter);  }  private class mylistadapter extends arrayadapter<pilstyper> {     public mylistadapter() {         super(alcohol.this, r.layout.list_item_view, alcohol);     }      public view getview(int position, view convertview, viewgroup parent) {         view itemview = convertview;         if (itemview == null) {             itemview = getlayoutinflater().inflate(                     r.layout.activity_item_view, parent, false);         }          alcohol alcohol = alcohol.get(position);          imageview imageview = (imageview) itemview                 .findviewbyid(r.id.wine);         imageview.setimageresource(alcohol.getikonid());          // text         textview text = (textview) itemview.findviewbyid(r.id.text_wine);         text.settext(alcohol.gettext());          return itemview;     } }  private void alcohollist() {     // todo auto-generated method stub     alcohol.add(new alcohol("wine", r.drawable.wine));     alcohol.add(new alcohol("beer", r.drawable.beer)); }  public void otheractivity(string a) {     intent = new intent();     if (a.equals("list")) {         i.setclass(getapplicationcontext(), list.class);     }     startactivity(i);     finish(); } } 

here listview class want add item 4 times if have selected 4 times in previous class. can add 1 time ://

 public class list extends activity { private list<alcohol> alcohol = new arraylist<alcohol>(); arrayadapter<alcohol> adapter; sharedpreferences somedata; public static string filename = "mysharedstring";  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);      setcontentview(r.layout.activity_item);      somedata = getsharedpreferences(filename, 0);       string wine = somedata.getstring("sharedstring4", "ooo");                string beer = somedata.getstring("sharedstring5", "ooo");       if(wine.equals("wine")){           alcohol.add(new alcohol("wine", r.drawable.wine));        }else if(wine.equals("wine")){           alcohol.add(new alcohol("beer", r.drawable.beer));        }   } 

in side onitemclick() store value want pass other activity in array list. list.add() , move other activity 1 submit kind of common button. may can put after list view. , pass list intent.