{"id":65905,"date":"2025-05-03T17:18:34","date_gmt":"2025-05-03T09:18:34","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65905\/"},"modified":"2025-05-03T17:18:34","modified_gmt":"2025-05-03T09:18:34","slug":"java%e4%b8%ad%e6%95%b0%e7%bb%84%e4%b8%8b%e6%a0%87%e8%b6%8a%e7%95%8c%e6%80%8e%e4%b9%88%e8%a7%a3%e5%86%b3-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65905\/","title":{"rendered":"java\u4e2d\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u600e\u4e48\u89e3\u51b3"},"content":{"rendered":"<blockquote><p>\n  java\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u89e3\u51b3\u65b9\u6848\uff1a1. \u68c0\u67e5\u4e0b\u6807\u8303\u56f4\uff1b2. \u4f7f\u7528try-catch\u5757\u6355\u83b7\u5f02\u5e38\uff1b3. \u8003\u8651\u4f7f\u7528\u53ef\u53d8\u957f\u6570\u7ec4\uff1b4. \u91c7\u7528for-each\u5faa\u73af\u907f\u514d\u624b\u52a8\u68c0\u67e5\u4e0b\u6807\u8303\u56f4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111315091770885.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u600e\u4e48\u89e3\u51b3\u63d2\u56fe\" alt=\"java\u4e2d\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u600e\u4e48\u89e3\u51b3\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u7684\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n<p>Java \u4e2d\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u662f\u6307\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u7d22\u5f15\u8d85\u51fa\u4e86\u6570\u7ec4\u7684\u8fb9\u754c\u3002\u8fd9\u79cd\u9519\u8bef\u4f1a\u5f15\u53d1 ArrayIndexOutOfBoundsException \u5f02\u5e38\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p><strong>1. \u68c0\u67e5\u4e0b\u6807\u8303\u56f4<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u5728\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u5e94\u59cb\u7ec8\u68c0\u67e5\u7d22\u5f15\u662f\u5426\u5728\u6570\u7ec4\u7684\u6709\u6548\u8303\u56f4\u5185\u3002\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u7136\u540e\u5c06\u7d22\u5f15\u4e0e\u8be5\u503c\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n<pre>if (index &lt; 0 || index &gt;= array.length) {\n    throw new ArrayIndexOutOfBoundsException();\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 try-catch \u5757<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 try-catch \u5757\u6765\u6355\u83b7 ArrayIndexOutOfBoundsException \u5f02\u5e38\u3002\u5982\u679c\u68c0\u6d4b\u5230\u4e0b\u6807\u8d8a\u754c\uff0c\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684\u9519\u8bef\u6d88\u606f\u6216\u8fdb\u884c\u5176\u4ed6\u5904\u7406\u3002<\/p>\n<pre>try {\n    int element = array[index];\n} catch (ArrayIndexOutOfBoundsException e) {\n    System.out.println(\"\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\uff1a\" + e.getMessage());\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u6570\u7ec4\u6269\u5bb9<\/strong><\/p>\n<p>\u5bf9\u4e8e\u9700\u8981\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 ArrayList \u6216 LinkedList \u7b49\u53ef\u53d8\u957f\u6570\u7ec4\u3002\u8fd9\u4e9b\u6570\u636e\u7ed3\u6784\u5141\u8bb8\u5728\u9700\u8981\u65f6\u81ea\u52a8\u5206\u914d\u548c\u5206\u914d\u5185\u5b58\u3002<\/p>\n<pre>ArrayList&lt;Integer&gt; list = new ArrayList&lt;&gt;();\nlist.add(1);\nlist.add(2);\nlist.add(3);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u5faa\u73af\u65f6\u4f7f\u7528 for-each<\/strong><\/p>\n<p>\u5bf9\u4e8e\u8981\u904d\u5386\u6574\u4e2a\u6570\u7ec4\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528 for-each \u5faa\u73af\u6765\u907f\u514d\u624b\u52a8\u68c0\u67e5\u4e0b\u6807\u8303\u56f4\u3002<\/p>\n<pre>for (int element : array) {\n    \/\/ \u5904\u7406\u5143\u7d20\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u600e\u4e48\u89e3\u51b3\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>java\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u89e3\u51b3\u65b9\u6848\uff1a1. \u68c0\u67e5\u4e0b\u6807\u8303\u56f4\uff1b2. \u4f7f\u7528try-catch\u5757\u6355\u83b7\u5f02\u5e38\uff1b3. \u8003\u8651\u4f7f\u7528\u53ef\u53d8\u957f\u6570\u7ec4\uff1b4. \u91c7\u7528for-each\u5faa\u73af\u907f\u514d\u624b\u52a8\u68c0\u67e5\u4e0b\u6807\u8303\u56f4\u3002 Java \u4e2d\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u7684\u89e3\u51b3\u65b9\u6848 Java \u4e2d\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u662f\u6307\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u7d22\u5f15\u8d85\u51fa\u4e86\u6570\u7ec4\u7684\u8fb9\u754c\u3002\u8fd9\u79cd\u9519\u8bef\u4f1a\u5f15\u53d1 ArrayIndexOutOfBoundsException \u5f02\u5e38\u3002 \u89e3\u51b3\u65b9\u6cd5\uff1a 1. \u68c0\u67e5\u4e0b\u6807\u8303\u56f4 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5728\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u5e94\u59cb\u7ec8\u68c0\u67e5\u7d22\u5f15\u662f\u5426\u5728\u6570\u7ec4\u7684\u6709\u6548\u8303\u56f4\u5185\u3002\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u7136\u540e\u5c06\u7d22\u5f15\u4e0e\u8be5\u503c\u8fdb\u884c\u6bd4\u8f83\u3002 if (index &lt; 0 || index &gt;= array.length) { throw new ArrayIndexOutOfBoundsException(); } \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 try-catch \u5757 \u53ef\u4ee5\u4f7f\u7528 try-catch \u5757\u6765\u6355\u83b7 ArrayIndexOutOfBoundsException \u5f02\u5e38\u3002\u5982\u679c\u68c0\u6d4b\u5230\u4e0b\u6807\u8d8a\u754c\uff0c\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684\u9519\u8bef\u6d88\u606f\u6216\u8fdb\u884c\u5176\u4ed6\u5904\u7406\u3002 try { int element = array[index]; } catch (ArrayIndexOutOfBoundsException e) { System.out.println(&#8220;\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\uff1a&#8221; + e.getMessage()); [&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-65905","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65905","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=65905"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65905\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}