java add to map
HashMap<String, String> map = new HashMap<>();
map.put("key", "value");java add to map
HashMap<String, String> map = new HashMap<>();
map.put("key", "value");add a value to a list java in java hashmap
if (map.get(id) == null) { //gets the value for an id)
map.put(id, new ArrayList<String>()); //no ArrayList assigned, create new ArrayList
map.get(id).add(value); //adds value to list.Copyright © 2021 Codeinu
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