{"id":1050,"date":"2019-11-28T18:31:50","date_gmt":"2019-11-28T10:31:50","guid":{"rendered":"http:\/\/149.129.74.185\/?p=1050"},"modified":"2019-11-28T18:31:50","modified_gmt":"2019-11-28T10:31:50","slug":"java-week-11-note","status":"publish","type":"post","link":"http:\/\/www.magicmipamipa.com\/?p=1050","title":{"rendered":"[JAVA] Week 11 Note"},"content":{"rendered":"<p>\u8868\u5355\u7684\u4e24\u4e2a\u5b9e\u73b0\uff1a<\/p>\n<p>ArrayList \uff1a\u901a\u8fc7\u6570\u7ec4\u5b9e\u73b0\uff0c\u6613\u8bbf\u95ee\uff0c\u4e0d\u6613\u589e\u5220<\/p>\n<p>LinkedList \uff1a\u901a\u8fc7\u94fe\u8868\u5b9e\u73b0\uff0c\u6613\u589e\u5220\uff0c\u4e0d\u6613\u8bbf\u95ee<\/p>\n<p>&nbsp;<\/p>\n<p>java.util.ArrayList<\/p>\n<p>java.util.LinkedList<\/p>\n<p>&nbsp;<\/p>\n<p>Set\u65e0\u5e8f\u4e0d\u53ef\u91cd\u590d<\/p>\n<p>List\u6709\u5e8f\u53ef\u91cd\u590d<\/p>\n<p>&nbsp;<\/p>\n<p>public native int hashCode()<\/p>\n<p>\u96c6\u5408\u8c03\u7528hashCode()\u5f97\u5230\u4e00\u4e2a\u5b58\u50a8\u4f4d\u7f6e\uff0c\u4f7f\u7528equal()\u67e5\u770b\u6709\u65e0\u91cd\u590d<\/p>\n<p>\u5982\u4f55\u8bbe\u8ba1hashCode\uff1f<\/p>\n<p>1.\u5982\u679c\u4e24\u4e2a\u5bf9\u8c61\u4e00\u81f4\uff0c\u5219\u4ed6\u4eec\u7684hashCode\u4e00\u5b9a\u76f8\u7b49\u3002<\/p>\n<p>2.\u5982\u679c\u4e24\u4e2a\u5bf9\u8c61\u7684hashCode\u4e00\u81f4\uff0c\u5219\u4ed6\u4eec\u6709\u53ef\u80fd\u4e0d\u76f8\u7b49\u3002<\/p>\n<p>\u91cd\u8f7dequal()\u548chashCode()<\/p>\n<p>&nbsp;<\/p>\n<p>java.util.Collection<\/p>\n<p>Collection \u7c7b \u529f\u80fd\u578b\u51fd\u6570<\/p>\n<p>Collections.sort() \u5bf9List\u6392\u5e8f<\/p>\n<p>Collections.reverse() \u5012\u5e8f<\/p>\n<p>Collections.fill() \u586b\u5145<\/p>\n<p>Collections.disjoint() \u6c42\u4ea4\u96c6<\/p>\n<p>&nbsp;<\/p>\n<p>java.util.Queue<\/p>\n<p>java.util.PriorityQueue \u6392\u5e8f\u4f18\u5148\u961f\u5217<\/p>\n<p>&nbsp;<\/p>\n<p>java.util.Map \u7c7b\u4f3c\u54c8\u5e0c\u8868<\/p>\n<p>Map&lt;Key,Value&gt;<\/p>\n<p>\u9ed8\u8ba4\u7684hashCode\u6307\u5411\u7684\u662f\u5730\u5740\uff0c\u6240\u4ee5\u91cd\u8f7d\u65f6\u4e5f\u9700\u8981\u91cd\u5199\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>EnumSet \u679a\u4e3eSet<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8868\u5355\u7684\u4e24\u4e2a\u5b9e\u73b0\uff1a ArrayList \uff1a\u901a\u8fc7\u6570\u7ec4\u5b9e\u73b0\uff0c\u6613\u8bbf\u95ee\uff0c\u4e0d\u6613\u589e\u5220 LinkedList \uff1a\u901a\u8fc7 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[28,16],"tags":[],"_links":{"self":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/1050"}],"collection":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}