Java Coding Problems

Testing time

MelonCollector can be used via the new keyword, as follows:

Map<Boolean, List<Melon>> melons2000 = melons.stream()  .collect(new MelonCollector());

We will receive the following output:

{  false = [Crenshaw(1200 g),Hemi(1600 g),Gac(1200 g),Horned(1700 g)],  true = [Gac(3000 g),Hemi(2600 g),Apollo(2600 g),          Gac(3000 g),Hemi(2600 g)]}

We can also use it via parallelStream():

Map<Boolean, List<Melon>> melons2000 = melons.parallelStream()  .collect(new MelonCollector());

If we use the combiner() method, then the output may look as follows:

{false = [], true = [Hemi(2600g)]}     ForkJoinPool.commonPool - worker - 7...{false = [Horned(1700g)], true = []}     ForkJoinPool.commonPool - worker - 15 {false = [Crenshaw(1200g)], true = [Gac(3000g)]} ...