Question

I am parsing XML file and writing data to hashmap, but when I am using the below code I am facing the error

“The method put(String, Double[]) in the type HashMap
is not applicable for the arguments (String, double)”

ArrayList<HashMap<String, Double[]>> mylist = new ArrayList<HashMap<String, Double[]>>();
for (int i = 0; i < children.getLength(); i++) {                            

HashMap<String, Double[]> map = new HashMap<String, Double[]>();
Element e = (Element)children.item(i);
    HashMap<String, Double[]> map = new HashMap<String, Double[]>();
    map.put("id",(Double.parseDouble(ParseXMLMethods.getValue(e, "EMP_ID"))));
    mylist.add(map);
}

How do I change so that it would match with the method definition?

Answer 1

This is because this line:

map.put("id",(Double.parseDouble(ParseXMLMethods.getValue(e, "EMP_ID"))));

Is trying to put a “Double” type in a map which expects a “Double[]” type. The following would be correct:

map.put("id",new Double[] { Double.valueOf(ParseXMLMethods.getValue(e, "EMP_ID")) });

because you’re wrapping the single value into an array, which matches the type expected in your map.