{"id":211,"date":"2018-09-15T23:21:43","date_gmt":"2018-09-15T15:21:43","guid":{"rendered":"http:\/\/kaispace.cn\/?p=211"},"modified":"2018-09-15T23:21:43","modified_gmt":"2018-09-15T15:21:43","slug":"java2","status":"publish","type":"post","link":"https:\/\/blog.kaispace.cn\/?p=211","title":{"rendered":"Java\u5bb9\u5668\u603b\u7ed3\uff08\u4e00\uff09"},"content":{"rendered":"<h1>\u57fa\u4e8eCollection<\/h1>\n<h2>1) Set\uff08\u65e0\u5e8f\u65e0\u91cd\u590d\uff09<\/h2>\n<p>Set\u662f\u901a\u8fc7equals()\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u91cd\u590d,\u56e0\u6b64\u7c7b\u578b\u4f7f\u7528\u81ea\u5b9a\u7c7b\u65f6\u9700\u8981\u5b9e\u73b0equals()<\/p>\n<h2>1.1 HashSet<\/h2>\n<p>\u63d2\u5165\u6761\u4ef6\uff08equals+Hashcode\uff09<br \/>\n\u7531Hash\u7b97\u6cd5\u8ba1\u7b97\u51faHash Code\u4ece\u800c\u51b3\u5b9a\u63d2\u5165\u4f4d\u7f6e\uff0c\u4e5f\u501fHash code\u5224\u91cd\u3002<br \/>\n\u904d\u5386\u987a\u5e8f\u7531Hashcode\u51b3\u5b9a\u3002<\/p>\n<h2>1.1.1 LinkHashSet<\/h2>\n<p>\u63d2\u5165\u6761\u4ef6\uff08equals+Hashcode\uff09<br \/>\n\u94fe\u8868\u5b9e\u73b0Hashset\uff0c\u5728\u63d2\u5165\u65f6\u9700\u8981\u7531Hashcode\u7ef4\u62a4\u987a\u5e8f\uff0c\u6240\u4ee5\u63d2\u5165\u6027\u80fd\u8f83\u4f4e\uff0c\u4f46\u904d\u5386\u6027\u80fd\u9ad8\u3002<br \/>\n\u7531\u4e8e\u94fe\u8868\u7279\u6027\uff0c\u904d\u5386LinkHashSet\u7684\u987a\u5e8f\u662f<span style=\"color: #ff0000;\">\u63d2\u5165\u987a\u5e8f<\/span>\u3002<\/p>\n<h2>1.2 SortSet(\u63a5\u53e3)<\/h2>\n<p>\u6b64\u63a5\u53e3\u4e3b\u8981\u7528\u4e8e\u6392\u5e8f\u64cd\u4f5c\uff0c\u5373\u5b9e\u73b0\u6b64\u63a5\u53e3\u7684\u5b50\u7c7b\u90fd\u5c5e\u4e8e\u6392\u5e8f\u7684\u5b50\u7c7b<\/p>\n<h2>1.2.1 TreeSet<\/h2>\n<p>\u5b9e\u73b0SortSet\u63a5\u53e3,\u63d2\u5165\u81ea\u5b9a\u4e49\u5bf9\u8c61\u65f6\u9700\u8981\u5b9e\u73b0Comparable\u63a5\u53e3\u6216\u8005\u6307\u5b9aComparator,\u5426\u5219\u4f1a\u629b\u51fajava.lang.ClassCastException\u5f02\u5e38<br \/>\n<a href=\"https:\/\/www.cnblogs.com\/yzssoft\/p\/7127894.html\">Java\u6df1\u5165\u4e86\u89e3TreeSet<\/a><\/p>\n<h2>1.3 EnumSet<\/h2>\n<p>\u4e3a\u679a\u4e3e\u7c7b\u8bbe\u8ba1\u7684Set\uff0c\u65b0\u5efa\u5bf9\u8c61\u65f6\u9700\u8981\u6307\u5b9a\u5bf9\u5e94\u7684\u679a\u4e3e\u7c7b\uff0c\u5982xxx.class\uff0c\u82e5\u63d2\u5165\u975e\u7c7b\u4e2d\u6210\u5458\u65f6\u4f1a\u629b\u51fa\u5f02\u5e38,\u4e14\u4e0d\u5141\u8bb8\u63d2\u5165null\u3002<br \/>\n\u987a\u5e8f\u4e3a\u679a\u4e3e\u7c7b\u4e2d\u7684\u987a\u5e8f\u3002<br \/>\n<a href=\"https:\/\/blog.csdn.net\/chengqiuming\/article\/details\/70139107\">\u4e13\u4e3a\u679a\u4e3e\u7c7b\u8bbe\u8ba1\u7684\u96c6\u5408\u7c7bEnumSet<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>2) List\uff08\u6709\u5e8f\u91cd\u590d\uff09<\/h2>\n<p>List\u96c6\u5408\u4ee3\u8868\u4e00\u4e2a\u5143\u7d20\u6709\u5e8f\u3001\u53ef\u91cd\u590d\u7684\u96c6\u5408\uff0c\u96c6\u5408\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u5176\u5bf9\u5e94\u7684\u987a\u5e8f\u7d22\u5f15\u3002List\u96c6\u5408\u5141\u8bb8\u52a0\u5165\u91cd\u590d\u5143\u7d20\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u6765\u8bbf\u95ee\u6307\u5b9a\u4f4d\u7f6e\u7684\u96c6\u5408\u5143\u7d20\u3002List\u96c6\u5408\u9ed8\u8ba4\u6309\u5143\u7d20\u7684\u6dfb\u52a0\u987a\u5e8f\u8bbe\u7f6e\u5143\u7d20\u7684\u7d22\u5f15<\/p>\n<h2>2.1 ArrayList<\/h2>\n<p>(\u57fa\u4e8e\u6570\u7ec4\u5b9e\u73b0,\u7ebf\u7a0b\u4e0d\u5b89\u5168)<br \/>\n\u5c01\u88c5\u4e86\u4e00\u4e2a\u52a8\u6001\u7684\u589e\u957f\u7684\u3001\u5141\u8bb8\u518d\u5206\u914d\u7684Object[]\u6570\u7ec4\u3002\u5728add\u65f6\u5019\u5224\u65ad\u662f\u5426\u6570\u636e\u5df2\u6ee1\uff0c\u518d\u8fdb\u884c\u586b\u5145\uff0c\u56e0\u6b64\u7a7a\u95f4\u4e0a\u5b58\u5728\u4e00\u5b9a\u6d6a\u8d39\u3002<\/p>\n<h2>2.2 Vector<\/h2>\n<p>(\u57fa\u4e8e\u6570\u7ec4\u5b9e\u73b0,\u7ebf\u7a0b\u5b89\u5168)<br \/>\nAPI\u90fd\u5f15\u5165synchronized\u5173\u952e\u5b57\uff0c\u56e0\u6b64\u7ebf\u7a0b\u5b89\u5168\u3002\u5b9e\u73b0\u65b9\u6cd5\u7c7b\u4f3c\u4e8eArrayList<\/p>\n<h2>2.2.1 Stack<\/h2>\n<p>(\u57fa\u4e8eVector\u5b9e\u73b0,\u5b9e\u73b0FILO\u5148\u8fdb\u540e\u51fa)<\/p>\n<h2>2.3 LinkedList<\/h2>\n<p>(\u5b9e\u73b0List, Deque,\u53cc\u5411\u94fe\u8868\uff0c\u53ef\u7528\u4e8e\u5806\u6808\u3001\u961f\u5217\u6216\u53cc\u7aef\u961f\u5217|Serializable\u652f\u6301\u5e8f\u5217\u5316|\u975e\u7ebf\u7a0b\u5b89\u5168)<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>3) Queue\uff08FIFO\u5148\u8fdb\u5148\u51fa\u961f\u5217\uff09<\/h2>\n<h2>3.1 PriorityQueue<\/h2>\n<p>\uff08\u6709\u5e8f\uff0c\u6309\u4ece\u5c0f\u5230\u5927\u6392\u5e8f\uff09<br \/>\n\u57fa\u4e8e\u6709\u5e8f\u4e8c\u53c9\u6811\uff0c\u5c0f\u6839\u5806\u6392\u5e8f\uff0c\u901a\u8fc7\u7ef4\u62a4\u4e00\u4e2a\u5b8c\u5168\u4e8c\u53c9\u6811\u6765\u5b9e\u73b0\u5bb9\u5668\u7684\u6709\u5e8f\u3002<\/p>\n<h2>3.2 Deque<\/h2>\n<p>(\u63a5\u53e3,\u53cc\u7aef\u961f\u5217|\u53ef\u505a\u961f\u5217\u53ef\u505a\u6808)<\/p>\n<h2>3.2.1 ArrayDeque<\/h2>\n<p>(\u57fa\u4e8e\u6570\u7ec4\u7ef4\u62a4\u7684\u53cc\u7aef\u961f\u5217|\u7ebf\u7a0b\u4e0d\u5b89\u5168)<br \/>\n\u5f53\u4f5c\u4e3a\u6808\u4f7f\u7528\u65f6\uff0c\u6027\u80fd\u6bd4Stack\u597d\uff1b\u5f53\u4f5c\u4e3a\u961f\u5217\u4f7f\u7528\u65f6\uff0c\u6027\u80fd\u6bd4LinkedList\u597d\u3002<\/p>\n<h2>3.2.2 LinkedList<\/h2>\n<p>(\u94fe\u8868)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8eCollection 1) Set\uff08\u65e0\u5e8f\u65e0\u91cd\u590d\uff09 Set\u662f\u901a\u8fc7equals()\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u91cd\u590d,\u56e0\u6b64\u7c7b\u578b\u4f7f&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,9],"tags":[25,34],"_links":{"self":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/posts\/211"}],"collection":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=211"}],"version-history":[{"count":0,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/posts\/211\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}