The HashSet<E> and LinkedHashSet<E> Classes The HashSet<E> class implements the Set<E> interface. Since this implementation uses a hash table, it…
Executing Stream Pipelines Apart from the fact that an intermediate operation always returns a new stream and a terminal operation…
15.12 The Arrays Class In this section we look at some selected utility methods from the java.util.Arrays class, in particular,…
Bulk Operations Bulk operations can be performed on an entire map. int size()boolean isEmpty() Return the number of entries (i.e.,…
The ArrayDeque<E> and LinkedList<E> Classes The ArrayDeque<E> and LinkedList<E> classes implement the Deque<E> interface. The ArrayDeque<E> class provides better performance…
15.10 Sorted Maps and Navigable Maps The SortedMap<K, V> interface extends the Map<K, V> interface, and the NavigableMap<K, V> interface…
Searching in Arrays A common operation on an array is to search the array for a given element, called the…
The TreeMap<K,V> Class The TreeMap<K, V> class is the analog of the TreeSet<E> class (p. 812), but in this case…
The TreeSet<E> Class The TreeSet<E> class implements the NavigableSet<E> interface and thereby the SortedSet<E> interface. By default, operations on a…
The static method comparing() extracts a comparator that uses the getName() method of the Task class, and the default method…