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The Java Developers Almanac 1.4Order this book from Amazon. |
e347. Creating a Copy of a CollectionThese examples create a shallow copy of a collection. That is, the new collection contains references to same objects as the source collection; the objects are not cloned.List stuff = Arrays.asList(new String[]{"a", "b"}); // Make a copy of a list List list = new ArrayList(stuff); List list2 = new LinkedList(list); // Make a copy of a set Set set = new HashSet(stuff); Set set2 = new TreeSet(set); // Make a copy of a map Map map = new HashMap(); // Add key/value pairs ... Map map2 = new TreeMap(map);
e343. Implementing a Stack e344. Implementing a Least-Recently-Used (LRU) Cache e345. Listing the Elements of a Collection e346. Storing Primitive Types in a Collection e348. Making a Collection Read-Only
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