{"id":67005,"date":"2025-05-03T10:06:49","date_gmt":"2025-05-03T02:06:49","guid":{"rendered":"https:\/\/fwq.ai\/blog\/67005\/"},"modified":"2025-05-03T10:06:49","modified_gmt":"2025-05-03T02:06:49","slug":"java%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e8%8e%b7%e5%8f%96%e6%9f%90%e4%b8%80%e4%b8%aa%e5%80%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/67005\/","title":{"rendered":"java\u6570\u7ec4\u600e\u4e48\u83b7\u53d6\u67d0\u4e00\u4e2a\u503c"},"content":{"rendered":"

\n \u8981\u83b7\u53d6 java \u6570\u7ec4\u4e2d\u7279\u5b9a\u503c\uff1a\u786e\u5b9a\u7d22\u5f15\uff08\u4ece 0 \u5230\u6570\u7ec4\u957f\u5ea6 – 1\uff09\uff1b\u4f7f\u7528\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u5143\u7d20\uff1aarray[index]\u3002\n<\/p><\/blockquote>\n

\"java\u6570\u7ec4\u600e\u4e48\u83b7\u53d6\u67d0\u4e00\u4e2a\u503c\u63d2\u56fe\"<\/p>\n

Java \u6570\u7ec4\u83b7\u53d6\u67d0\u4e00\u4e2a\u503c<\/strong><\/p>\n

Java \u6570\u7ec4\u662f\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u4e00\u7ec4\u5143\u7d20\u7684\u8fde\u7eed\u5185\u5b58\u5757\u3002\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u7279\u5b9a\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

1. \u786e\u5b9a\u7d22\u5f15<\/strong><\/p>\n

\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u4e0e\u5176\u5173\u8054\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u76f4\u5230\u6570\u7ec4\u957f\u5ea6\u51cf 1\u3002\u4f8b\u5982\uff0c\u5305\u542b 5 \u4e2a\u5143\u7d20\u7684\u6570\u7ec4\u7684\u7d22\u5f15\u8303\u56f4\u4e3a 0 \u5230 4\u3002<\/p>\n

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

2. \u4f7f\u7528\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20<\/strong><\/p>\n

\u4e00\u65e6\u4f60\u786e\u5b9a\u4e86\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u8be5\u5143\u7d20\u3002\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26\u540e\u8ddf\u7d22\u5f15\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

int element = array[index];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • array \u662f\u8981\u8bbf\u95ee\u7684\u6570\u7ec4\u3002<\/li>\n
  • index \u662f\u8981\u83b7\u53d6\u5176\u503c\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b<\/strong><\/p>\n
    \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a int \u6570\u7ec4 numbers\uff0c\u5305\u542b\u4ee5\u4e0b\u5143\u7d20\uff1a<\/p>\n
    int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8981\u83b7\u53d6\u7d22\u5f15\u4e3a 2 \u7684\u5143\u7d20\uff08\u503c\u4e3a 3\uff09\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
    int value = numbers[2];\nSystem.out.println(value); \/\/ \u8f93\u51fa\uff1a3<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u7d22\u5f15\u8d8a\u754c\u662f\u4e0d\u5b89\u5168\u7684\u3002\u8fd9\u610f\u5473\u7740\u5c1d\u8bd5\u8bbf\u95ee\u4e0d\u5b58\u5728\u7684\u7d22\u5f15\u5c06\u5bfc\u81f4 ArrayIndexOutOfBoundsException \u5f02\u5e38\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\u65f6\uff0c\u8bf7\u52a1\u5fc5\u5c0f\u5fc3\u8c28\u614e\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u600e\u4e48\u83b7\u53d6\u67d0\u4e00\u4e2a\u503c\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\u4e2d\u7279\u5b9a\u503c\uff1a\u786e\u5b9a\u7d22\u5f15\uff08\u4ece 0 \u5230\u6570\u7ec4\u957f\u5ea6 – 1\uff09\uff1b\u4f7f\u7528\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u5143\u7d20\uff1aarray[index]\u3002 Java \u6570\u7ec4\u83b7\u53d6\u67d0\u4e00\u4e2a\u503c Java \u6570\u7ec4\u662f\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u4e00\u7ec4\u5143\u7d20\u7684\u8fde\u7eed\u5185\u5b58\u5757\u3002\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u7279\u5b9a\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a 1. \u786e\u5b9a\u7d22\u5f15 \u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u4e0e\u5176\u5173\u8054\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u76f4\u5230\u6570\u7ec4\u957f\u5ea6\u51cf 1\u3002\u4f8b\u5982\uff0c\u5305\u542b 5 \u4e2a\u5143\u7d20\u7684\u6570\u7ec4\u7684\u7d22\u5f15\u8303\u56f4\u4e3a 0 \u5230 4\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 2. \u4f7f\u7528\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20 \u4e00\u65e6\u4f60\u786e\u5b9a\u4e86\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u8be5\u5143\u7d20\u3002\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26\u540e\u8ddf\u7d22\u5f15\uff0c\u5982\u4e0b\u6240\u793a\uff1a int element = array[index]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a array \u662f\u8981\u8bbf\u95ee\u7684\u6570\u7ec4\u3002 index \u662f\u8981\u83b7\u53d6\u5176\u503c\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002 \u793a\u4f8b \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a int \u6570\u7ec4 numbers\uff0c\u5305\u542b\u4ee5\u4e0b\u5143\u7d20\uff1a int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u8981\u83b7\u53d6\u7d22\u5f15\u4e3a […]<\/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-67005","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/67005","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=67005"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/67005\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=67005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=67005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=67005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}