<dependencies> <dependency> <groupId>org.eclipse.collections</groupId> <artifactId>eclipse-collections</artifactId> <version>XX.XX.XX</version> </dependency> </dependencies> MutableList<Integer> list = Lists.mutable.with(1, 2, 3, 4, 5); MutableSet<String> set = Sets.mutable.with("apple", "banana", "orange"); MutableBag<String> bag = Bags.mutable.with("apple", "apple", "banana", "orange"); MutableList<Integer> filteredList = list.select(e -> e % 2 == 0); MutableList<String> transformedList = list.collect(e -> "Number: " + e); MutableList<Integer> sortedList = list.sortThis(); ParallelListCollect<Integer, Integer> parallelCollect = ParallelIterate.collect(list, e -> e * 2);