Using Java 8 stream methods to get a max value

Question

I would like to get the max value out of a list using java 8 stream methods.

The structure is the following:

• I read a csv file and store the data of every

Answer 1

using Comparator:

int max2 = arrRound.stream()
            .flatMap(round -> round.getHits().stream())
            .max(Comparator.comparing(Hits::getPrizeAmount))
            .map(Hits::getPrizeAmount)
            .orElse(-1);