{"id":65227,"date":"2025-05-03T14:17:40","date_gmt":"2025-05-03T06:17:40","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65227\/"},"modified":"2025-05-03T14:17:40","modified_gmt":"2025-05-03T06:17:40","slug":"java%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%8f%96%e5%87%ba%e6%9d%a5-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65227\/","title":{"rendered":"java\u6570\u7ec4\u600e\u4e48\u53d6\u51fa\u6765"},"content":{"rendered":"

\n \u8981\u83b7\u53d6 java \u6570\u7ec4\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u8bed\u6cd5\uff1aarray[index]\uff0c\u5176\u4e2d array \u662f\u6570\u7ec4\u540d\u79f0\uff0cindex \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002\u4f8b\u5982\uff0cint[] numbers = {1, 2, 3, 4, 5}\uff0c\u8981\u83b7\u53d6\u7b2c\u4e09\u4e2a\u5143\u7d20\uff0c\u4f7f\u7528\uff1aint thirdelement = numbers[2]\u3002\u5207\u8bb0\u7d22\u5f15\u5fc5\u987b\u662f\u975e\u8d1f\u6574\u6570\uff0c\u4e14\u4e0d\u80fd\u8d85\u8fc7\u6570\u7ec4\u957f\u5ea6\u51cf 1\uff0c\u5426\u5219\u4f1a\u5f15\u53d1 arrayindexoutofboundsexception\u3002\n<\/p><\/blockquote>\n

\"java\u6570\u7ec4\u600e\u4e48\u53d6\u51fa\u6765\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n

\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong><\/p>\n

\u83b7\u53d6 Java \u6570\u7ec4\u5143\u7d20\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n

array[index]<\/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
  • array \u662f\u6570\u7ec4\u540d\u79f0\u3002<\/li>\n
  • index \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002<\/li>\n<\/ul>\n
    \u8be6\u7ec6\u89e3\u91ca\uff1a<\/strong><\/p>\n
    \u6570\u7ec4\u662f\u4e00\u79cd\u5b58\u50a8\u8fde\u7eed\u5185\u5b58\u4f4d\u7f6e\u7684\u5143\u7d20\u96c6\u5408\u3002\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u7d22\u5f15\uff0c\u7528\u4e8e\u6807\u8bc6\u5b83\u5728\u6570\u7ec4\u4e2d\u7684\u4f4d\u7f6e\u3002\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e2d\u62ec\u53f7\u8bed\u6cd5 []\uff0c\u5176\u4e2d\u7d22\u5f15\u6307\u5b9a\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u3002<\/p>\n
    \u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u521b\u5efa\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u5143\u7d20\u7684\u6574\u6570\u6570\u7ec4\uff1a<\/p>\n
    int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e09\u4e2a\u5143\u7d20\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
    int thirdElement = numbers[2];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8fd9\u5c06\u628a 2 \u8d4b\u503c\u7ed9 thirdElement \u53d8\u91cf\u3002<\/p>\n
    \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u7d22\u5f15\u5fc5\u987b\u662f\u975e\u8d1f\u6574\u6570\u3002<\/li>\n
    • \u7d22\u5f15\u4e0d\u80fd\u8d85\u8fc7\u6570\u7ec4\u7684\u957f\u5ea6\u51cf 1\u3002<\/li>\n
    • \u5c1d\u8bd5\u8bbf\u95ee\u6570\u7ec4\u8303\u56f4\u5916\u7684\u7d22\u5f15\u4f1a\u5bfc\u81f4 ArrayIndexOutOfBoundsException\u3002<\/li>\n<\/ul>\n
      \u793a\u4f8b\uff1a<\/strong><\/p>\n
      \u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n
      public class ArrayExample {\n\n    public static void main(String[] args) {\n        String[] names = {\"John\", \"Mary\", \"Bob\"};\n\n        \/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\n        String firstName = names[0];\n\n        \/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\n        String lastName = names[names.length - 1];\n\n        System.out.println(\"First name: \" + firstName);\n        System.out.println(\"Last name: \" + lastName);\n    }\n}<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u8f93\u51fa\uff1a<\/p>\n
      First name: John\nLast name: Bob<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u600e\u4e48\u53d6\u51fa\u6765\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u8981\u83b7\u53d6 java \u6570\u7ec4\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u8bed\u6cd5\uff1aarray[index]\uff0c\u5176\u4e2d array \u662f\u6570\u7ec4\u540d\u79f0\uff0cindex \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002\u4f8b\u5982\uff0cint[] numbers = {1, 2, 3, 4, 5}\uff0c\u8981\u83b7\u53d6\u7b2c\u4e09\u4e2a\u5143\u7d20\uff0c\u4f7f\u7528\uff1aint thirdelement = numbers[2]\u3002\u5207\u8bb0\u7d22\u5f15\u5fc5\u987b\u662f\u975e\u8d1f\u6574\u6570\uff0c\u4e14\u4e0d\u80fd\u8d85\u8fc7\u6570\u7ec4\u957f\u5ea6\u51cf 1\uff0c\u5426\u5219\u4f1a\u5f15\u53d1 arrayindexoutofboundsexception\u3002 \u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u5143\u7d20 \u5f00\u95e8\u89c1\u5c71\uff1a \u83b7\u53d6 Java \u6570\u7ec4\u5143\u7d20\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a array[index] \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b array \u662f\u6570\u7ec4\u540d\u79f0\u3002 index \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002 \u8be6\u7ec6\u89e3\u91ca\uff1a \u6570\u7ec4\u662f\u4e00\u79cd\u5b58\u50a8\u8fde\u7eed\u5185\u5b58\u4f4d\u7f6e\u7684\u5143\u7d20\u96c6\u5408\u3002\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u7d22\u5f15\uff0c\u7528\u4e8e\u6807\u8bc6\u5b83\u5728\u6570\u7ec4\u4e2d\u7684\u4f4d\u7f6e\u3002\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e2d\u62ec\u53f7\u8bed\u6cd5 []\uff0c\u5176\u4e2d\u7d22\u5f15\u6307\u5b9a\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u3002 \u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u521b\u5efa\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u5143\u7d20\u7684\u6574\u6570\u6570\u7ec4\uff1a int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e09\u4e2a\u5143\u7d20\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a int thirdElement […]<\/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-65227","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65227","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=65227"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65227\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}