{"id":4588,"date":"2019-12-12T16:43:54","date_gmt":"2019-12-12T08:43:54","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=4588"},"modified":"2019-12-12T16:43:54","modified_gmt":"2019-12-12T08:43:54","slug":"%e5%90%90%e6%a7%bd%e4%b8%80%e4%b8%8b-java-8-lambda-%e8%a1%a8%e8%be%be%e5%bc%8f%e7%9a%84%e4%bc%98%e7%bc%ba%e7%82%b9","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=4588","title":{"rendered":"\u5410\u69fd\u4e00\u4e0b Java 8 Lambda \u8868\u8fbe\u5f0f\u7684\u4f18\u7f3a\u70b9"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4f7f\u7528 Java 8 \u6709\u5f88\u957f\u7684\u4e00\u6bb5\u65f6\u95f4\u4e86\uff0c\u5bf9\u5b83\u7684 Lambda \u8868\u8fbe\u5f0f\u7231\u4e0d\u91ca\u624b\uff0c\u4f46\u662f\u6700\u8fd1\u53d1\u73b0\u5b83\u7684\u7f3a\u70b9\u4e5f\u4e0d\u5c11\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u539f\u672c\u9879\u76ee\u8dd1\u7684\u662f\u5f88\u987a\u5229\u7684\uff0c\u76f4\u5230\u6709\u4e00\u5929\u6539\u4e86\u67d0\u4e2a\u9700\u6c42\uff0c\u968f\u624b\u628a\u8fd9\u4e2a\u4efb\u52a1\u5206\u7ed9\u4e86\u5176\u4ed6\u65b0\u540c\u4e8b\uff0c\u8c01\u77e5\u65b0\u540c\u4e8b\u770b\u4e0d\u61c2 Lambda\uff0c\u6e90\u7801\u9605\u8bfb\u8d77\u6765\u592a\u56f0\u96be\u4e86\uff01\u6211\u4eec\u5148\u4ece\u4e00\u4e2a\u4f8b\u5b50\u5f00\u59cb\u6765\u8bf4\uff0c\u5b83\u4e3a\u4ec0\u4e48\u8ba9\u6211\u4eec\u96be\u4ee5\u7ef4\u62a4\u4e86\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>List&lt;String&gt; xttblogList = Arrays.asList(\"www\", \"xttblog\", \"ilove1212\", \"com\");\nCollections.sort(xttblogList, new Comparator&lt;String&gt;() {\n    @Override\n    public int compare(String a, String b) {\n        return b.compareTo(a);\n    }\n});<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5355\u770b\u8fd9\u4e2a\u6392\u5e8f\uff0c\u5199\u7684\u5f88\u6e9c\uff0c\u975e\u5e38\u7684\u719f\u6089\u3002\u4f46\u662f\u6211\u624b\u8d31\uff0c\u987a\u4fbf\u7528\u4e00\u4e0b Lambda\uff0c\u4e8e\u662f\u8fd9\u6bb5\u6392\u5e8f\u4ee3\u7801\uff0c\u88ab\u6211\u6539\u6210\u4e86\u4e0b\u9762\u8fd9\u4e2a\u6837\u5b50\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Collections.sort(xttblogList, (String a, String b) -&gt; {\n    return b.compareTo(a);\n});<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\u770b\u8d77\u6765\u4e5f\u5f88\u7b80\u6d01\uff0c\u4f46\u662f\u6709\u4e00\u5929\u52a0\u73ed\uff0c\u6211\u53c8\u770b\u5230\u540c\u6837\u7684\u6392\u5e8f\u573a\u666f\u4e86\uff0c\u6211\u53c8\u5bf9\u5176\u4ed6\u4ee3\u7801\u505a\u4e86\u8fdb\u4e00\u6b65\u7684\u4f18\u5316\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Collections.sort(xttblogList, (String a, String b) -&gt; b.compareTo(a));<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4ee5\u4e3a\u8fd9\u6837\u5c31\u662f\u6700\u5b8c\u7f8e\u7684\uff0c\u8c01\u77e5\u9053\u4e0a\u5468\u4e00\u4e2a\u540c\u5b66\u7ed9\u6211\u622a\u4e86\u4e00\u6bb5\u4ee3\u7801\uff0c\u6211\u987a\u4fbf\u770b\u5230\uff0c\u522b\u4eba\u7684\u6392\u5e8f\u662f\u8fd9\u6837\u5199\u7684\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>xttblogList.sort((a, b) -&gt; b.compareTo(a));<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c31\u8fd9\u6837\uff0c\u6211\u628a\u540e\u6765\u65b0\u9700\u8981\u6392\u5e8f\u7684\u4ee3\u7801\u90fd\u6539\u6210\u4e86\u8fd9\u6837\uff0c\u76f4\u5230\u6700\u8fd1\u4e00\u4e2a\u65b0\u540c\u4e8b\u53cd\u6620\uff0c\u8fd9\u79cd\u4ee3\u7801\u592a\u96be\u9605\u8bfb\u4e86\uff0c\u592a\u96be\u7ef4\u62a4\u4e86\uff0c\u4e8e\u662f\u6211\u5f00\u59cb\u53cd\u601d\u4e86\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lambda \u867d\u597d\uff0c\u4f46\u662f\u4f18\u7f3a\u70b9\u4e5f\u5f88\u660e\u663e\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f18\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u4ee3\u7801\u91cf\u770b\u8d77\u6765\u5f88\u5c11\uff0c\u5f88\u7b80\u6d01\u3002<\/li><li>\u5199\u4ee3\u7801\u7684\u6548\u7387\u9ad8\u3002<br>\n3.&nbsp;\u53ef\u4ee5\u5e76\u884c\u5904\u7406\uff0c\u5145\u5206\u5229\u7528\u591a\u6838CPU\u7684\u4f18\u52bf\u3002<\/li><li>\u6709\u5229\u4e8eJIT\u7f16\u8bd1\u5668\u5bf9\u4ee3\u7801\u8fdb\u884c\u4f18\u5316\u3002<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f3a\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u975e\u5e76\u884c\u8ba1\u7b97\u60c5\u51b5\u4e0b\uff0c\u5176\u8ba1\u7b97\u901f\u5ea6\u6ca1\u6709\u6bd4\u4f20\u7edf\u7684 for \u5faa\u73af\u5feb\u3002<\/li><li>\u4e0d\u5bb9\u6613\u8c03\u8bd5\u3002<\/li><li>\u82e5\u5176\u4ed6\u7a0b\u5e8f\u5458\u6ca1\u6709\u5b66\u8fc7 Lambda \u8868\u8fbe\u5f0f\uff0c\u4ee3\u7801\u4e0d\u5bb9\u6613\u8ba9\u5176\u4ed6\u8bed\u8a00\u7684\u7a0b\u5e8f\u5458\u770b\u61c2\u3002<\/li><li>\u5728 Lambda \u8bed\u53e5\u4e2d\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u8c8c\u4f3c\u4e0d\u65b9\u4fbf\u3002<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8e\u662f\uff0c\u6211\u6839\u636e Comparator \u63a5\u53e3\u4e2d\u63d0\u4f9b\u7684\u9759\u6001\u65b9\u6cd5\u6392\u5e8f\u65b9\u6cd5\uff0c\u628a\u4e00\u4e9b\u6392\u5e8f\u4ee3\u7801\uff0c\u6539\u6210\u4e86\u4e0b\u9762\u8fd9\u6837\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>xttblogList.sort(Comparator.reverseOrder());<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u53ef\u80fd\u662f\u4e00\u79cd\u6bd4\u8f83\u6298\u4e2d\u7684\u529e\u6cd5\uff0c\u4f46\u662f\uff0c\u6ca1\u5904\u7684\u6392\u5e8f\u4ee3\u7801\u90fd\u4e0d\u4e00\u6837\uff0c\u4f1a\u4e0d\u4f1a\u592a\u4e71\u4e86\uff01<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=4588\">\u5410\u69fd\u4e00\u4e0b Java 8 Lambda \u8868\u8fbe\u5f0f\u7684\u4f18\u7f3a\u70b9<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 Java 8 \u6709\u5f88\u957f\u7684\u4e00\u6bb5\u65f6\u95f4\u4e86\uff0c\u5bf9\u5b83\u7684 Lambda \u8868\u8fbe\u5f0f\u7231\u4e0d\u91ca\u624b\uff0c\u4f46\u662f\u6700\u8fd1\u53d1\u73b0\u5b83\u7684\u7f3a\u70b9\u4e5f\u4e0d\u5c11\uff01 \u539f [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[2041,620,173,821,172],"class_list":["post-4588","post","type-post","status-publish","format-standard","hentry","category-java","tag-lambda","tag-173","tag-821","tag-172"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4588"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4588\/revisions"}],"predecessor-version":[{"id":4589,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4588\/revisions\/4589"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}