{"id":39318,"date":"2024-11-26T14:41:25","date_gmt":"2024-11-26T06:41:25","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39318\/"},"modified":"2024-11-26T14:41:25","modified_gmt":"2024-11-26T06:41:25","slug":"java%e6%80%8e%e4%b9%88%e5%88%a4%e6%96%ad%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e8%b6%8a%e7%95%8c","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39318\/","title":{"rendered":"java\u600e\u4e48\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u662f\u5426\u8d8a\u754c\u7684\u65b9\u6cd5\u6709\uff1a\u68c0\u67e5\u884c\u5217\u7d22\u5f15\u662f\u5426\u8d85\u51fa\u8fb9\u754c\uff1b\u4f7f\u7528 java \u5f02\u5e38\u5904\u7406\u5668\u6355\u83b7 indexoutofboundsexception\uff1b\u624b\u52a8\u68c0\u67e5\u7d22\u5f15\u503c\uff1b\u4f7f\u7528\u8f85\u52a9\u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111606252269114.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c<\/strong><\/p>\n<p>\u5f53\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u9632\u6b62\u6570\u7ec4\u8d8a\u754c\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5728 Java \u4e2d\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u662f\u5426\u8d8a\u754c\uff1a<\/p>\n<p><strong>1. \u68c0\u67e5\u884c\u5217\u7d22\u5f15<\/strong><\/p>\n<p>\u68c0\u67e5\u884c\u548c\u5217\u7d22\u5f15\u662f\u5426\u8d85\u51fa\u6570\u7ec4\u8fb9\u754c\u3002\u5bf9\u4e8e\u4e00\u4e2a n x m \u4e8c\u7ef4\u6570\u7ec4\uff0c\u5408\u6cd5\u7d22\u5f15\u8303\u56f4\u4e3a\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u884c\uff1a0 \u5230 n-1\uff08\u5305\u542b\uff09<\/li>\n<li>\u5217\uff1a0 \u5230 m-1\uff08\u5305\u542b\uff09<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a 3&#215;4 \u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5408\u6cd5\u7d22\u5f15\u8303\u56f4\u4e3a\uff1a<\/p>\n<ul>\n<li>\u884c\uff1a0\u30011\u30012<\/li>\n<li>\u5217\uff1a0\u30011\u30012\u30013<\/li>\n<\/ul>\n<p><strong>2. \u4f7f\u7528 IndexOutOfBoundsException<\/strong><\/p>\n<p>Java \u5f02\u5e38\u4f1a\u5728\u6570\u7ec4\u8d8a\u754c\u65f6\u629b\u51fa IndexOutOfBoundsException\u3002\u60a8\u53ef\u4ee5\u5c1d\u8bd5\u8bbf\u95ee\u6570\u7ec4\u5e76\u6355\u83b7\u6b64\u5f02\u5e38\u3002<\/p>\n<pre>try {\n    int[][] array = new int[3][4];\n    int value = array[3][4];  \/\/ \u53d1\u751f\u8d8a\u754c\u5f02\u5e38\n} catch (IndexOutOfBoundsException e) {\n    \/\/ ArrayIndexOutOfBoundsException \u5904\u7406\u4ee3\u7801\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u624b\u52a8\u68c0\u67e5<\/strong><\/p>\n<p>\u4e5f\u53ef\u4ee5\u624b\u52a8\u68c0\u67e5\u7d22\u5f15\u503c\u662f\u5426\u8d85\u51fa\u8303\u56f4\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[][] array = new int[3][4];\nint row = 2;\nint col = 5;\n\nif (row &lt; 0 || row &gt;= array.length ||\n    col &lt; 0 || col &gt;= array[row].length) {\n    \/\/ \u6570\u7ec4\u8d8a\u754c\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528\u8f85\u52a9\u65b9\u6cd5<\/strong><\/p>\n<p>\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5c0f\u52a9\u624b\u65b9\u6cd5\u6765\u68c0\u67e5\u8d8a\u754c\uff1a<\/p>\n<pre>public static boolean isOutOfBounds(int[][] array, int row, int col) {\n    return row &lt; 0 || row &gt;= array.length ||\n           col &lt; 0 || col &gt;= array[row].length;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u7136\u540e\uff0c\u5728\u9700\u8981\u65f6\u8c03\u7528\u6b64\u65b9\u6cd5\u6765\u68c0\u67e5\u8d8a\u754c\uff1a<\/p>\n<pre>int[][] array = new int[3][4];\nint row = 2;\nint col = 5;\n\nif (isOutOfBounds(array, row, col)) {\n    \/\/ \u6570\u7ec4\u8d8a\u754c\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\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":"<p>\u5728 java \u4e2d\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u662f\u5426\u8d8a\u754c\u7684\u65b9\u6cd5\u6709\uff1a\u68c0\u67e5\u884c\u5217\u7d22\u5f15\u662f\u5426\u8d85\u51fa\u8fb9\u754c\uff1b\u4f7f\u7528 java \u5f02\u5e38\u5904\u7406\u5668\u6355\u83b7 indexoutofboundsexception\uff1b\u624b\u52a8\u68c0\u67e5\u7d22\u5f15\u503c\uff1b\u4f7f\u7528\u8f85\u52a9\u65b9\u6cd5\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c \u5f53\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u9632\u6b62\u6570\u7ec4\u8d8a\u754c\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5728 Java \u4e2d\u5224\u65ad\u4e8c\u7ef4\u6570\u7ec4\u662f\u5426\u8d8a\u754c\uff1a 1. \u68c0\u67e5\u884c\u5217\u7d22\u5f15 \u68c0\u67e5\u884c\u548c\u5217\u7d22\u5f15\u662f\u5426\u8d85\u51fa\u6570\u7ec4\u8fb9\u754c\u3002\u5bf9\u4e8e\u4e00\u4e2a n x m \u4e8c\u7ef4\u6570\u7ec4\uff0c\u5408\u6cd5\u7d22\u5f15\u8303\u56f4\u4e3a\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u884c\uff1a0 \u5230 n-1\uff08\u5305\u542b\uff09 \u5217\uff1a0 \u5230 m-1\uff08\u5305\u542b\uff09 \u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a 3&#215;4 \u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5408\u6cd5\u7d22\u5f15\u8303\u56f4\u4e3a\uff1a \u884c\uff1a0\u30011\u30012 \u5217\uff1a0\u30011\u30012\u30013 2. \u4f7f\u7528 IndexOutOfBoundsException Java \u5f02\u5e38\u4f1a\u5728\u6570\u7ec4\u8d8a\u754c\u65f6\u629b\u51fa IndexOutOfBoundsException\u3002\u60a8\u53ef\u4ee5\u5c1d\u8bd5\u8bbf\u95ee\u6570\u7ec4\u5e76\u6355\u83b7\u6b64\u5f02\u5e38\u3002 try { int[][] array = new int[3][4]; int value = array[3][4]; \/\/ \u53d1\u751f\u8d8a\u754c\u5f02\u5e38 } catch (IndexOutOfBoundsException e) { [&hellip;]<\/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-39318","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39318","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=39318"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39318\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}