{"id":36743,"date":"2024-11-26T09:27:00","date_gmt":"2024-11-26T01:27:00","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36743\/"},"modified":"2024-11-26T09:27:00","modified_gmt":"2024-11-26T01:27:00","slug":"java-%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%8f%96%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36743\/","title":{"rendered":"java \u6570\u7ec4\u600e\u4e48\u53d6\u503c"},"content":{"rendered":"

\n java \u6570\u7ec4\u53d6\u503c\u65b9\u6cd5\uff1a\u4f7f\u7528 [] \u64cd\u4f5c\u7b26\u8bbf\u95ee\u5143\u7d20\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff1b\u8fd8\u53ef\u4ee5\u4f7f\u7528 length\u3001for-each \u5faa\u73af\u3001arrays.copyofrange() \u548c arrays.sort() \u7b49\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n

\"java<\/p>\n

Java \u6570\u7ec4\u53d6\u503c<\/strong><\/p>\n

\u53d6\u503c\u65b9\u6cd5<\/strong><\/p>\n

Java \u4e2d\u7684\u6570\u7ec4\u662f\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528 [] \u64cd\u4f5c\u7b26\u8bbf\u95ee\u5176\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

arrayName[index]<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff0carrayName \u662f\u6570\u7ec4\u7684\u540d\u79f0\uff0cindex \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u662f\u4ece 0 \u5f00\u59cb\u7684\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u793a\u4f8b<\/strong><\/p>\n
\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e09\u4e2a\u5143\u7d20\uff1a<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\nint thirdElement = numbers[2];\nSystem.out.println(thirdElement); \/\/ \u8f93\u51fa 3<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\uff1a<\/strong><\/p>\n
    \n
  • \u7d22\u5f15\u5fc5\u987b\u662f\u6709\u6548\u7684\uff0c\u5373\u5fc5\u987b\u5927\u4e8e\u6216\u7b49\u4e8e 0 \u4e14\u5c0f\u4e8e\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n
  • \u5982\u679c\u5c1d\u8bd5\u8bbf\u95ee\u8d85\u51fa\u8303\u56f4\u7684\u7d22\u5f15\uff0c\u5c06\u5f15\u53d1 ArrayIndexOutOfBoundsException\u3002<\/li>\n<\/ul>\n
    \u5176\u4ed6\u53d6\u503c\u65b9\u6cd5<\/strong><\/p>\n
    \u9664\u4e86 [] \u64cd\u4f5c\u7b26\u5916\uff0c\u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n
      \n
    •  length\uff1a<\/strong>\u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\uff08\u5143\u7d20\u6570\u91cf\uff09\u3002<\/li>\n
    •  for-each \u5faa\u73af\uff1a<\/strong>\u4f7f\u7528 for-each \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002<\/li>\n
    •  Arrays.copyOfRange()\uff1a<\/strong>\u8fd4\u56de\u6570\u7ec4\u4e2d\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20\u3002<\/li>\n
    •  Arrays.sort()\uff1a<\/strong>\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava \u6570\u7ec4\u600e\u4e48\u53d6\u503c\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":"
      java \u6570\u7ec4\u53d6\u503c\u65b9\u6cd5\uff1a\u4f7f\u7528 [] \u64cd\u4f5c\u7b26\u8bbf\u95ee\u5143\u7d20\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff1b\u8fd8\u53ef\u4ee5\u4f7f\u7528 length\u3001for-each \u5faa\u73af\u3001arrays.copyofrange() \u548c arrays.sort() \u7b49\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u7ec4\u3002 Java \u6570\u7ec4\u53d6\u503c \u53d6\u503c\u65b9\u6cd5 Java \u4e2d\u7684\u6570\u7ec4\u662f\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528 [] \u64cd\u4f5c\u7b26\u8bbf\u95ee\u5176\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a arrayName[index] \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0carrayName \u662f\u6570\u7ec4\u7684\u540d\u79f0\uff0cindex \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u662f\u4ece 0 \u5f00\u59cb\u7684\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u793a\u4f8b \u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e09\u4e2a\u5143\u7d20\uff1a int[] numbers = {1, 2, 3, 4, 5}; int thirdElement = numbers[2]; System.out.println(thirdElement); \/\/ \u8f93\u51fa 3 \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\uff1a \u7d22\u5f15\u5fc5\u987b\u662f\u6709\u6548\u7684\uff0c\u5373\u5fc5\u987b\u5927\u4e8e\u6216\u7b49\u4e8e 0 \u4e14\u5c0f\u4e8e\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u5982\u679c\u5c1d\u8bd5\u8bbf\u95ee\u8d85\u51fa\u8303\u56f4\u7684\u7d22\u5f15\uff0c\u5c06\u5f15\u53d1 ArrayIndexOutOfBoundsException\u3002 \u5176\u4ed6\u53d6\u503c\u65b9\u6cd5 \u9664\u4e86 [] \u64cd\u4f5c\u7b26\u5916\uff0c\u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a […]<\/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-36743","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36743","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=36743"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36743\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}