BeerProcessorChallenger.java

import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;

public class BeerProcessorChallenger{
    private static int drunkenness;

    public static void main (String [] args) {
        Supplier<Integer> moneBeerSupplier = () -> drunkenness = 5;
        drunkenness = 10;
        Function<Integer, Integer> processBeer = beerProccessor -> drunkenness = (beerProccessor + drunkenness);

        Consumer<Integer> homerBeerConsumer = System.out::println;
        homerBeerConsumer.accept(moneBeerSupplier.get() + processBeer.apply(drunkenness));
    }
}