{"id":65641,"date":"2025-05-03T14:45:06","date_gmt":"2025-05-03T06:45:06","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65641\/"},"modified":"2025-05-03T14:45:06","modified_gmt":"2025-05-03T06:45:06","slug":"java%e6%80%8e%e4%b9%88%e5%bc%95%e7%94%a8%e6%95%b0%e7%bb%84%e4%b8%ad%e5%85%83%e7%b4%a0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65641\/","title":{"rendered":"java\u600e\u4e48\u5f15\u7528\u6570\u7ec4\u4e2d\u5143\u7d20"},"content":{"rendered":"

\n \u5728 java \u4e2d\u5f15\u7528\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u7d22\u5f15\u53f7\uff0c\u5176\u4ece 0 \u5f00\u59cb\u4ee3\u8868\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u4f8b\u5982\uff0c\u8003\u8651\u4e00\u4e2a int \u6570\u7ec4 numbers[1, 2, 3, 4, 5]\uff0c\u53ef\u4ee5\u5f15\u7528\u7b2c\u4e00\u4e2a\u5143\u7d20\u4e3a\uff1aint firstelement = numbers[0]\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u5f15\u7528\u6570\u7ec4\u4e2d\u5143\u7d20\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5f15\u7528 Java \u6570\u7ec4\u4e2d\u7684\u5143\u7d20<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u5f15\u7528\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u975e\u5e38\u7b80\u5355\u3002\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u7d22\u5f15\u53f7\u6765\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\u3002\u7d22\u5f15\u53f7\u4ece 0 \u5f00\u59cb\uff0c\u4ee3\u8868\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n

\u8bed\u6cd5\uff1a<\/strong><\/p>\n

arrayName[indexNumber]<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
    \n
  •  arrayName<\/strong> \u662f\u6570\u7ec4\u7684\u540d\u79f0<\/li>\n
  •  indexNumber<\/strong> \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\u53f7<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u8003\u8651\u4e00\u4e2a\u540d\u4e3a numbers \u7684 int \u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u5143\u7d20 [1, 2, 3, 4, 5]\u3002<\/p>\n
    \u5f15\u7528\u7b2c\u4e00\u4e2a\u5143\u7d20\uff08\u5373 1\uff09\uff1a<\/p>\n
    int firstElement = numbers[0];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5f15\u7528\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff08\u5373 5\uff09\uff1a<\/p>\n
    int lastElement = numbers[numbers.length - 1];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5f15\u7528\u4f4d\u4e8e\u6570\u7ec4\u4e2d\u95f4\u7684\u5143\u7d20\uff08\u5373 3\uff09\uff1a<\/p>\n
    int middleElement = numbers[2];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6ce8\u610f\uff1a<\/strong><\/p>\n
      \n
    • \u7d22\u5f15\u53f7\u5fc5\u987b\u5728 0 \u548c\u6570\u7ec4\u957f\u5ea6\u51cf 1 \u4e4b\u95f4\uff08\u5305\u62ec\u7aef\u70b9\uff09\u3002<\/li>\n
    • \u5982\u679c\u63d0\u4f9b\u7684\u7d22\u5f15\u53f7\u8d85\u51fa\u8303\u56f4\uff0c\u5c06\u629b\u51fa ArrayIndexOutOfBoundsException\u3002<\/li>\n
    • \u6570\u7ec4\u5143\u7d20\u7c7b\u578b\u5fc5\u987b\u4e0e\u6570\u7ec4\u58f0\u660e\u7684\u7c7b\u578b\u5339\u914d\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5f15\u7528\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5728 java \u4e2d\u5f15\u7528\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u7d22\u5f15\u53f7\uff0c\u5176\u4ece 0 \u5f00\u59cb\u4ee3\u8868\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u4f8b\u5982\uff0c\u8003\u8651\u4e00\u4e2a int \u6570\u7ec4 numbers[1, 2, 3, 4, 5]\uff0c\u53ef\u4ee5\u5f15\u7528\u7b2c\u4e00\u4e2a\u5143\u7d20\u4e3a\uff1aint firstelement = numbers[0]\u3002 \u5982\u4f55\u5f15\u7528 Java \u6570\u7ec4\u4e2d\u7684\u5143\u7d20 \u5728 Java \u4e2d\uff0c\u5f15\u7528\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u975e\u5e38\u7b80\u5355\u3002\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u7d22\u5f15\u53f7\u6765\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\u3002\u7d22\u5f15\u53f7\u4ece 0 \u5f00\u59cb\uff0c\u4ee3\u8868\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002 \u8bed\u6cd5\uff1a arrayName[indexNumber] \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b arrayName \u662f\u6570\u7ec4\u7684\u540d\u79f0 indexNumber \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\u53f7 \u793a\u4f8b\uff1a \u8003\u8651\u4e00\u4e2a\u540d\u4e3a numbers \u7684 int \u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u5143\u7d20 [1, 2, 3, 4, 5]\u3002 \u5f15\u7528\u7b2c\u4e00\u4e2a\u5143\u7d20\uff08\u5373 1\uff09\uff1a int firstElement = numbers[0]; \u767b\u5f55\u540e\u590d\u5236 \u5f15\u7528\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff08\u5373 5\uff09\uff1a int lastElement = […]<\/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-65641","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65641","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=65641"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65641\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}