android - What is the meaning of "ITEM_ID_LIST"? -

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at code below, meaning of "item_id_list".

i don't know replace this..."item_id_list"

    arraylist skulist = new arraylist();     skulist.add("premiumupgrade");      skulist.add("gas");     bundle queryskus = new bundle();     queryskus.putstringarraylist(“item_id_list”, skulist);

it works string id identify arraylist - "skulist". can replace name of choice.


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