{"id":37764,"date":"2024-11-26T12:42:58","date_gmt":"2024-11-26T04:42:58","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37764\/"},"modified":"2024-11-26T12:42:58","modified_gmt":"2024-11-26T04:42:58","slug":"java%e6%95%b0%e7%bb%84%e5%b7%a5%e5%85%b7%e7%b1%bb%e6%80%8e%e4%b9%88%e6%b5%8b%e8%af%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37764\/","title":{"rendered":"java\u6570\u7ec4\u5de5\u5177\u7c7b\u600e\u4e48\u6d4b\u8bd5"},"content":{"rendered":"<blockquote><p>\n  \u7b54\u6848\uff1a java \u6570\u7ec4\u5de5\u5177\u7c7b\u6d4b\u8bd5\u65b9\u6cd5\u53ef\u9488\u5bf9\u4ee5\u4e0b\u65b9\u6cd5\u8fdb\u884c\u68c0\u67e5\uff1acopyof()\uff1a \u521b\u5efa\u539f\u59cb\u6570\u7ec4\u526f\u672c\u3002sort()\uff1a \u6309\u5347\u5e8f\u5bf9\u6570\u7ec4\u6392\u5e8f\u3002binarysearch()\uff1a \u5728\u6392\u5e8f\u6570\u7ec4\u4e2d\u6267\u884c\u4e8c\u5206\u67e5\u627e\u3002equals()\uff1a \u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u76f8\u7b49\u3002fill()\uff1a \u7528\u6307\u5b9a\u503c\u586b\u5145\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111310122574476.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u5de5\u5177\u7c7b\u600e\u4e48\u6d4b\u8bd5\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u5de5\u5177\u7c7b\u600e\u4e48\u6d4b\u8bd5\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u6570\u7ec4\u5de5\u5177\u7c7b\u6d4b\u8bd5\u65b9\u6cd5<\/strong><\/p>\n<p>Java \u63d0\u4f9b\u4e86 java.util.Arrays \u7c7b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u7ec4\u7528\u4e8e\u64cd\u4f5c\u6570\u7ec4\u7684\u5b9e\u7528\u65b9\u6cd5\u3002\u6d4b\u8bd5\u8fd9\u4e9b\u5de5\u5177\u7c7b\u5bf9\u4e8e\u786e\u4fdd\u4ee3\u7801\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><strong>\u6d4b\u8bd5 Arrays.copyOf() \u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li> <strong>\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong> Arrays.copyOf() \u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5b83\u662f\u539f\u59cb\u6570\u7ec4\u7684\u526f\u672c\u3002<\/li>\n<li>\n<p><strong>\u8be6\u7ec6\u89e3\u91ca\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u521b\u5efa\u4e00\u4e2a\u539f\u59cb\u6570\u7ec4 original\u3002<\/li>\n<li>\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u590d\u5236 original\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728 copy \u4e2d\u3002<\/li>\n<li>\u65ad\u8a00 copy \u7b49\u4e8e original\uff0c\u5373\u5b83\u4eec\u5177\u6709\u76f8\u540c\u7684\u503c\u548c\u957f\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u6d4b\u8bd5 Arrays.sort() \u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li> <strong>\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong> Arrays.sort() \u65b9\u6cd5\u6309\u5347\u5e8f\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<li>\n<p><strong>\u8be6\u7ec6\u89e3\u91ca\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u521b\u5efa\u4e00\u4e2a\u672a\u6392\u5e8f\u6570\u7ec4 unsorted\u3002<\/li>\n<li>\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u5bf9 unsorted \u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<li>\u65ad\u8a00 unsorted \u5df2\u6309\u5347\u5e8f\u6392\u5e8f\uff0c\u5373\u5176\u5143\u7d20\u4ece\u6700\u5c0f\u5230\u6700\u5927\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u6d4b\u8bd5 Arrays.binarySearch() \u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li> <strong>\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong> Arrays.binarySearch() \u65b9\u6cd5\u5728\u6392\u5e8f\u6570\u7ec4\u4e2d\u6267\u884c\u4e8c\u5206\u67e5\u627e\u3002<\/li>\n<li>\n<p><strong>\u8be6\u7ec6\u89e3\u91ca\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u521b\u5efa\u4e00\u4e2a\u6392\u5e8f\u6570\u7ec4 sorted\u3002<\/li>\n<li>\u4ece sorted \u4e2d\u67e5\u627e\u4e00\u4e2a\u5b58\u5728\u7684\u503c target\uff0c\u5e76\u4f7f\u7528 Arrays.binarySearch() \u65b9\u6cd5\u83b7\u53d6\u5176\u7d22\u5f15\u3002<\/li>\n<li>\u65ad\u8a00\u8fd4\u56de\u7684\u7d22\u5f15\u7b49\u4e8e target \u5728 sorted \u4e2d\u7684\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u6d4b\u8bd5 Arrays.equals() \u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li> <strong>\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong> Arrays.equals() \u65b9\u6cd5\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u76f8\u7b49\u3002<\/li>\n<li>\n<p><strong>\u8be6\u7ec6\u89e3\u91ca\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u521b\u5efa\u4e24\u4e2a\u503c\u4e0d\u540c\u7684\u6570\u7ec4 array1 \u548c array2\u3002<\/li>\n<li>\u4f7f\u7528 Arrays.equals() \u65b9\u6cd5\u6bd4\u8f83 array1 \u548c array2\uff0c\u5e76\u65ad\u8a00\u5b83\u4eec\u4e0d\u76f8\u7b49\u3002<\/li>\n<li>\u521b\u5efa\u4e24\u4e2a\u503c\u76f8\u540c\u7684\u6570\u7ec4 array3 \u548c array4\uff0c\u5e76\u4f7f\u7528 Arrays.equals() \u65b9\u6cd5\u6bd4\u8f83\u5b83\u4eec\uff0c\u65ad\u8a00\u5b83\u4eec\u76f8\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u6d4b\u8bd5 Arrays.fill() \u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li> <strong>\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong> Arrays.fill() \u65b9\u6cd5\u7528\u6307\u5b9a\u503c\u586b\u5145\u6570\u7ec4\u3002<\/li>\n<li>\n<p><strong>\u8be6\u7ec6\u89e3\u91ca\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4 array\u3002<\/li>\n<li>\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u7528\u503c 10 \u586b\u5145 array\u3002<\/li>\n<li>\u65ad\u8a00 array \u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u7b49\u4e8e 10\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u5de5\u5177\u7c7b\u600e\u4e48\u6d4b\u8bd5\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>\u7b54\u6848\uff1a java \u6570\u7ec4\u5de5\u5177\u7c7b\u6d4b\u8bd5\u65b9\u6cd5\u53ef\u9488\u5bf9\u4ee5\u4e0b\u65b9\u6cd5\u8fdb\u884c\u68c0\u67e5\uff1acopyof()\uff1a \u521b\u5efa\u539f\u59cb\u6570\u7ec4\u526f\u672c\u3002sort()\uff1a \u6309\u5347\u5e8f\u5bf9\u6570\u7ec4\u6392\u5e8f\u3002binarysearch()\uff1a \u5728\u6392\u5e8f\u6570\u7ec4\u4e2d\u6267\u884c\u4e8c\u5206\u67e5\u627e\u3002equals()\uff1a \u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u76f8\u7b49\u3002fill()\uff1a \u7528\u6307\u5b9a\u503c\u586b\u5145\u6570\u7ec4\u3002 Java \u6570\u7ec4\u5de5\u5177\u7c7b\u6d4b\u8bd5\u65b9\u6cd5 Java \u63d0\u4f9b\u4e86 java.util.Arrays \u7c7b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u7ec4\u7528\u4e8e\u64cd\u4f5c\u6570\u7ec4\u7684\u5b9e\u7528\u65b9\u6cd5\u3002\u6d4b\u8bd5\u8fd9\u4e9b\u5de5\u5177\u7c7b\u5bf9\u4e8e\u786e\u4fdd\u4ee3\u7801\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\u81f3\u5173\u91cd\u8981\u3002 \u6d4b\u8bd5 Arrays.copyOf() \u65b9\u6cd5 \u5f00\u95e8\u89c1\u5c71\uff1a Arrays.copyOf() \u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5b83\u662f\u539f\u59cb\u6570\u7ec4\u7684\u526f\u672c\u3002 \u8be6\u7ec6\u89e3\u91ca\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u521b\u5efa\u4e00\u4e2a\u539f\u59cb\u6570\u7ec4 original\u3002 \u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u590d\u5236 original\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728 copy \u4e2d\u3002 \u65ad\u8a00 copy \u7b49\u4e8e original\uff0c\u5373\u5b83\u4eec\u5177\u6709\u76f8\u540c\u7684\u503c\u548c\u957f\u5ea6\u3002 \u6d4b\u8bd5 Arrays.sort() \u65b9\u6cd5 \u5f00\u95e8\u89c1\u5c71\uff1a Arrays.sort() \u65b9\u6cd5\u6309\u5347\u5e8f\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002 \u8be6\u7ec6\u89e3\u91ca\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u521b\u5efa\u4e00\u4e2a\u672a\u6392\u5e8f\u6570\u7ec4 unsorted\u3002 \u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u5bf9 unsorted \u8fdb\u884c\u6392\u5e8f\u3002 \u65ad\u8a00 unsorted \u5df2\u6309\u5347\u5e8f\u6392\u5e8f\uff0c\u5373\u5176\u5143\u7d20\u4ece\u6700\u5c0f\u5230\u6700\u5927\u3002 \u6d4b\u8bd5 Arrays.binarySearch() \u65b9\u6cd5 [&hellip;]<\/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-37764","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37764","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=37764"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37764\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}