{"id":36737,"date":"2024-11-26T08:50:38","date_gmt":"2024-11-26T00:50:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36737\/"},"modified":"2024-11-26T08:50:38","modified_gmt":"2024-11-26T00:50:38","slug":"java%e6%80%8e%e4%b9%88%e6%95%b0%e7%bb%84%e8%b0%83%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36737\/","title":{"rendered":"java\u600e\u4e48\u6570\u7ec4\u8c03\u7528"},"content":{"rendered":"

\n java \u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4e0b\u6807\u7d22\u5f15\u6216 array.length \u8c03\u7528\u5143\u7d20\uff0c\u5176\u4e2d\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u4e14\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u957f\u5ea6\uff0c\u5426\u5219\u4f1a\u629b\u51fa arrayindexoutofboundsexception \u5f02\u5e38\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u6570\u7ec4\u8c03\u7528\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u5982\u4f55\u8c03\u7528\u6570\u7ec4<\/strong><\/p>\n

\u7b80\u4ecb<\/strong><\/p>\n

Java \u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u7684\u6570\u636e\u5143\u7d20\u3002\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u9700\u8981\u4f7f\u7528\u7d22\u5f15\u3002<\/p>\n

\u8c03\u7528\u6570\u7ec4<\/strong><\/p>\n

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

\u8c03\u7528\u6570\u7ec4\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n

1. \u901a\u8fc7\u4e0b\u6807\u7d22\u5f15<\/strong><\/p>\n

int[] numbers = {1, 2, 3, 4, 5};\nint firstNumber = numbers[0]; \/\/ \u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u901a\u8fc7 array.length<\/strong><\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\nint lastIndex = numbers.length - 1; \/\/ \u83b7\u53d6\u6700\u540e\u5143\u7d20\u7684\u7d22\u5f15\nint lastNumber = numbers[lastIndex]; \/\/ \u83b7\u53d6\u6700\u540e\u5143\u7d20<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8bed\u6cd5<\/strong><\/p>\n
\u4ee5\u4e0b\u662f\u5bf9\u6570\u7ec4\u8fdb\u884c\u8c03\u7528\u7684\u8bed\u6cd5\uff1a<\/p>\n
array_name[index]<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff0carray_name \u662f\u6570\u7ec4\u7684\u540d\u79f0\uff0cindex \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002<\/p>\n
\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
    \n
  • \u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002<\/li>\n
  • \u7d22\u5f15\u5fc5\u987b\u5c0f\u4e8e\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n
  • \u5982\u679c\u7d22\u5f15\u8d85\u51fa\u8303\u56f4\uff0c\u5c06\u4f1a\u629b\u51fa ArrayIndexOutOfBoundsException \u5f02\u5e38\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u6570\u7ec4\u8c03\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":"
    java \u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4e0b\u6807\u7d22\u5f15\u6216 array.length \u8c03\u7528\u5143\u7d20\uff0c\u5176\u4e2d\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u4e14\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u957f\u5ea6\uff0c\u5426\u5219\u4f1a\u629b\u51fa arrayindexoutofboundsexception \u5f02\u5e38\u3002 Java \u4e2d\u5982\u4f55\u8c03\u7528\u6570\u7ec4 \u7b80\u4ecb Java \u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u7684\u6570\u636e\u5143\u7d20\u3002\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u9700\u8981\u4f7f\u7528\u7d22\u5f15\u3002 \u8c03\u7528\u6570\u7ec4 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u8c03\u7528\u6570\u7ec4\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u5f0f\uff1a 1. \u901a\u8fc7\u4e0b\u6807\u7d22\u5f15 int[] numbers = {1, 2, 3, 4, 5}; int firstNumber = numbers[0]; \/\/ \u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20 \u767b\u5f55\u540e\u590d\u5236 2. \u901a\u8fc7 array.length int[] numbers = {1, 2, 3, 4, 5}; int lastIndex = numbers.length – 1; \/\/ \u83b7\u53d6\u6700\u540e\u5143\u7d20\u7684\u7d22\u5f15 int lastNumber = […]<\/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-36737","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36737","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=36737"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36737\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}