how to remove null index from ArrayList in android

In this blog explain how to remove  empty index (null index)  from  ArrayList. Help you try this code

ArrayList<String>  itemids = new ArrayList<String>();

ItemNamelist.add("ItemName");

ItemNamelist.add(" "); // empty indiex

ItemNamelist.add(" ");

ItemNamelist.add(" ");

ItemNamelist.add("ItemName");

for(int i=0;i<itemids.size();i++)

{

     String value=itemids.get(i);
   // find not null string

     if(!value.equals("")){

     j=j+"~"+value;

}

}

Toast.makeText(getApplication() , j ,  oast.LENGTH_LONG).show();