Convert a double array to Double ArrayList

Question

When I try to convert a double array to a Double arrayList I got the following error:

Exception in thread \"main\" java.lang.ClassCastException: [D ca

Answer 1

Using Java 8 Streams API this is achieved with

DoubleStream.of(doublesArray).boxed().collect(Collectors.toList());

If returning an ArrayList as an implementation is required then use

DoubleStream.of(doublesArray).boxed().collect(Collectors.toCollection(ArrayList::new));

This one-liner doesn't require any additional libraries.