{"id":35543,"date":"2024-11-26T09:34:52","date_gmt":"2024-11-26T01:34:52","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35543\/"},"modified":"2024-11-26T09:34:52","modified_gmt":"2024-11-26T01:34:52","slug":"java%e6%80%8e%e4%b9%88%e6%89%be%e6%95%b0%e7%bb%84%e7%9a%84%e6%9c%80%e5%90%8e%e4%b8%80%e4%bd%8d","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35543\/","title":{"rendered":"java\u600e\u4e48\u627e\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4f4d"},"content":{"rendered":"<blockquote><p>\n  \u8981\u83b7\u53d6 java \u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff1a1. \u4f7f\u7528\u7d22\u5f15\u83b7\u53d6\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u7d22\u5f15\u83b7\u53d6\u5143\u7d20\uff1b2. \u4f7f\u7528\u8fed\u4ee3\u5668\u904d\u5386\u6570\u7ec4\uff0c\u5728\u6700\u540e\u4e00\u6b21\u8fed\u4ee3\u4e2d\u83b7\u53d6\u5143\u7d20\uff1b3. \u4f7f\u7528\u6d41\u9010\u4e00\u5904\u7406\u6570\u7ec4\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110405331636492.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u627e\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4f4d\u63d2\u56fe\" alt=\"java\u600e\u4e48\u627e\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4f4d\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20<\/strong><\/p>\n<p>\u8981\u83b7\u53d6 Java \u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u4f7f\u7528\u7d22\u5f15<\/strong><\/p>\n<pre>int lastIndex = array.length - 1;\nT lastElement = array[lastIndex];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u8fed\u4ee3\u5668<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>Iterator&lt;T&gt; iterator = Arrays.asList(array).iterator();\nwhile (iterator.hasNext()) {\n    T lastElement = iterator.next();\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u6d41<\/strong><\/p>\n<pre>T lastElement = Arrays.stream(array).reduce((a, b) -&gt; b).orElse(null);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u627e\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4f4d\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8981\u83b7\u53d6 java \u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff1a1. \u4f7f\u7528\u7d22\u5f15\u83b7\u53d6\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u7d22\u5f15\u83b7\u53d6\u5143\u7d20\uff1b2. \u4f7f\u7528\u8fed\u4ee3\u5668\u904d\u5386\u6570\u7ec4\uff0c\u5728\u6700\u540e\u4e00\u6b21\u8fed\u4ee3\u4e2d\u83b7\u53d6\u5143\u7d20\uff1b3. \u4f7f\u7528\u6d41\u9010\u4e00\u5904\u7406\u6570\u7ec4\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u3002 \u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20 \u8981\u83b7\u53d6 Java \u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a \u4f7f\u7528\u7d22\u5f15 int lastIndex = array.length &#8211; 1; T lastElement = array[lastIndex]; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u8fed\u4ee3\u5668 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Iterator&lt;T&gt; iterator = Arrays.asList(array).iterator(); while (iterator.hasNext()) { T lastElement = iterator.next(); } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6d41 T lastElement = Arrays.stream(array).reduce((a, b) -&gt; b).orElse(null); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u627e\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4f4d\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-35543","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35543","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=35543"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35543\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}