{"id":37342,"date":"2024-11-26T14:57:32","date_gmt":"2024-11-26T06:57:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37342\/"},"modified":"2024-11-26T14:57:32","modified_gmt":"2024-11-26T06:57:32","slug":"java%e4%b8%ad%e7%9a%84%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37342\/","title":{"rendered":"java\u4e2d\u7684\u6570\u7ec4\u600e\u4e48\u7528"},"content":{"rendered":"

\n \u5728 java \u4e2d\u4f7f\u7528\u6570\u7ec4\uff1a\u521b\u5efa\u6570\u7ec4\uff1a\u4f7f\u7528\u6570\u636e\u7c7b\u578b[] \u6570\u7ec4\u540d = {\u503c1, \u503c2, …, \u503c n} \u8bed\u6cd5\u3002\u8bbf\u95ee\u5143\u7d20\uff1a\u4f7f\u7528\u6570\u7ec4\u540d[\u7d22\u5f15] \u8bed\u6cd5\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\u6570\u7ec4\u5c5e\u6027\uff1alength\uff08\u5143\u7d20\u6570\u91cf\uff09\u3001\u7c7b\u578b\uff08\u5b58\u50a8\u6570\u636e\u7c7b\u578b\uff09\u3002\u6570\u7ec4\u64cd\u4f5c\uff1a\u5faa\u73af\u904d\u5386\u3001\u641c\u7d22\u3001\u6392\u5e8f\u3001\u590d\u5236\u3002\u6ce8\u610f\u4e8b\u9879\uff1a\u5927\u5c0f\u4e0d\u53ef\u53d8\uff0c\u5143\u7d20\u4e0d\u53ef\u4e3a null\uff0c\u662f\u5f15\u7528\u7c7b\u578b\u3002\n<\/p><\/blockquote>\n

\"java\u4e2d\u7684\u6570\u7ec4\u600e\u4e48\u7528\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u4f7f\u7528\u6570\u7ec4<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u4e00\u7ec4\u5143\u7d20\u3002\u5b83\u662f\u4e00\u4e2a\u6309\u7d22\u5f15\u8bbf\u95ee\u7684\u987a\u5e8f\u96c6\u5408\u3002<\/p>\n

\u521b\u5efa\u6570\u7ec4<\/strong><\/p>\n

\u8981\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

\u6570\u636e\u7c7b\u578b[] \u6570\u7ec4\u540d = {\u503c1, \u503c2, ..., \u503c n};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8\u6574\u6570\u7684\u6570\u7ec4\uff1a<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n
\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u6765\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n
\u6570\u7ec4\u540d[\u7d22\u5f15]<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f8b\u5982\uff0c\u8981\u8bbf\u95ee\u6570\u7ec4 numbers \u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff1a<\/p>\n
int firstNumber = numbers[0];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6570\u7ec4\u5c5e\u6027<\/strong><\/p>\n
    \n
  •  length\uff1a<\/strong>\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/li>\n
  •  \u7c7b\u578b\uff1a<\/strong>\u8868\u793a\u6570\u7ec4\u4e2d\u5b58\u50a8\u7684\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<\/ul>\n
    \u6570\u7ec4\u64cd\u4f5c<\/strong><\/p>\n
      \n
    •  \u5faa\u73af\u904d\u5386\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u6216 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002<\/li>\n
    •  \u641c\u7d22\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 Arrays.binarySearch() \u65b9\u6cd5\u5728\u5df2\u6392\u5e8f\u7684\u6570\u7ec4\u4e2d\u67e5\u627e\u5143\u7d20\u3002<\/li>\n
    •  \u6392\u5e8f\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n
    •  \u590d\u5236\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u590d\u5236\u6570\u7ec4\u3002<\/li>\n<\/ul>\n
      \u6570\u7ec4\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
        \n
      • \u6570\u7ec4\u7684\u5927\u5c0f\u5728\u521b\u5efa\u540e\u4e0d\u80fd\u66f4\u6539\u3002<\/li>\n
      • \u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4e0d\u80fd\u4e3a null\u3002<\/li>\n
      • \u6570\u7ec4\u662f\u5f15\u7528\u7c7b\u578b\uff0c\u800c\u4e0d\u662f\u503c\u7c7b\u578b\u3002\u56e0\u6b64\uff0c\u5bf9\u6570\u7ec4\u7684\u66f4\u6539\u5c06\u53cd\u6620\u5728\u539f\u6570\u7ec4\u4e2d\u3002<\/li>\n<\/ul>\n
        \u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u7684\u6570\u7ec4\u600e\u4e48\u7528\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":"
        \u5728 java \u4e2d\u4f7f\u7528\u6570\u7ec4\uff1a\u521b\u5efa\u6570\u7ec4\uff1a\u4f7f\u7528\u6570\u636e\u7c7b\u578b[] \u6570\u7ec4\u540d = {\u503c1, \u503c2, …, \u503c n} \u8bed\u6cd5\u3002\u8bbf\u95ee\u5143\u7d20\uff1a\u4f7f\u7528\u6570\u7ec4\u540d[\u7d22\u5f15] \u8bed\u6cd5\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\u6570\u7ec4\u5c5e\u6027\uff1alength\uff08\u5143\u7d20\u6570\u91cf\uff09\u3001\u7c7b\u578b\uff08\u5b58\u50a8\u6570\u636e\u7c7b\u578b\uff09\u3002\u6570\u7ec4\u64cd\u4f5c\uff1a\u5faa\u73af\u904d\u5386\u3001\u641c\u7d22\u3001\u6392\u5e8f\u3001\u590d\u5236\u3002\u6ce8\u610f\u4e8b\u9879\uff1a\u5927\u5c0f\u4e0d\u53ef\u53d8\uff0c\u5143\u7d20\u4e0d\u53ef\u4e3a null\uff0c\u662f\u5f15\u7528\u7c7b\u578b\u3002 Java \u4e2d\u4f7f\u7528\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u4e00\u7ec4\u5143\u7d20\u3002\u5b83\u662f\u4e00\u4e2a\u6309\u7d22\u5f15\u8bbf\u95ee\u7684\u987a\u5e8f\u96c6\u5408\u3002 \u521b\u5efa\u6570\u7ec4 \u8981\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6570\u636e\u7c7b\u578b[] \u6570\u7ec4\u540d = {\u503c1, \u503c2, …, \u503c n}; \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8\u6574\u6570\u7684\u6570\u7ec4\uff1a int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20 \u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u6765\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002 \u6570\u7ec4\u540d[\u7d22\u5f15] \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u8981\u8bbf\u95ee\u6570\u7ec4 numbers \u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff1a int firstNumber = numbers[0]; […]<\/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-37342","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37342","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=37342"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37342\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}