{"id":65221,"date":"2025-05-03T11:32:19","date_gmt":"2025-05-03T03:32:19","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65221\/"},"modified":"2025-05-03T11:32:19","modified_gmt":"2025-05-03T03:32:19","slug":"java%e6%80%8e%e4%b9%88%e6%b1%82%e6%95%b0%e7%bb%84%e4%b8%8b%e6%a0%87-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65221\/","title":{"rendered":"java\u600e\u4e48\u6c42\u6570\u7ec4\u4e0b\u6807"},"content":{"rendered":"<blockquote><p>\n  java \u6570\u7ec4\u4e0b\u6807\u4ece 0 \u5f00\u59cb\uff0c\u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u6216\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 [] \u8bbf\u95ee\u7279\u5b9a\u4e0b\u6807\u5904\u7684\u5143\u7d20\u3002\u6ce8\u610f\uff0c\u4e0b\u6807\u503c\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u8fb9\u754c\uff0c\u5426\u5219\u4f1a\u5f15\u53d1 indexoutofboundsexception\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111212455881241.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u6c42\u6570\u7ec4\u4e0b\u6807\u63d2\u56fe\" alt=\"java\u600e\u4e48\u6c42\u6570\u7ec4\u4e0b\u6807\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u7684\u4e0b\u6807\uff1f<\/strong><\/p>\n<p>Java \u6570\u7ec4\u4e0b\u6807\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4f4d\u7f6e\u3002\u8981\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u4e0b\u6807\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u4f7f\u7528\u5faa\u73af<\/strong><\/p>\n<p>\u4f7f\u7528 for \u6216 while \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u4f7f\u7528\u4e0b\u6807\u53d8\u91cf\u6765\u83b7\u53d6\u5f53\u524d\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\n\n\/\/ \u4f7f\u7528 for \u5faa\u73af\u83b7\u53d6\u6570\u7ec4\u4e0b\u6807\nfor (int i = 0; i &lt; arr.length; i++) {\n    System.out.println(\"\u5143\u7d20 \" + arr[i] + \" \u7684\u4e0b\u6807\u4e3a \" + i);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26<\/strong><\/p>\n<p>\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 [] \u8bbf\u95ee\u7279\u5b9a\u4e0b\u6807\u5904\u7684\u5143\u7d20\u3002\u8981\u83b7\u53d6\u8be5\u4e0b\u6807\uff0c\u53ea\u9700\u5728\u8fd0\u7b97\u7b26\u4e2d\u6307\u5b9a\u4e0b\u6807\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint index = 2;\n\n\/\/ \u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u83b7\u53d6\u6570\u7ec4\u4e0b\u6807\nint element = arr[index];\n\nSystem.out.println(\"\u4e0b\u6807 \" + index + \" \u5904\u7684\u5143\u7d20\u4e3a \" + element);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>Java \u6570\u7ec4\u4e0b\u6807\u4ece 0 \u5f00\u59cb\uff0c\u8fd9\u610f\u5473\u7740\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u4e0b\u6807\u4e3a 0\u3002<\/li>\n<li>\u83b7\u53d6\u6570\u7ec4\u4e0b\u6807\u65f6\uff0c\u4e0b\u6807\u503c\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u7684\u8fb9\u754c\uff08\u5373\uff0c\u4e0d\u80fd\u5c0f\u4e8e 0 \u6216\u5927\u4e8e\u7b49\u4e8e\u6570\u7ec4\u7684\u957f\u5ea6\uff09\u3002\u5426\u5219\uff0c\u4f1a\u5f15\u53d1 IndexOutOfBoundsException\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u6c42\u6570\u7ec4\u4e0b\u6807\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\u4ece 0 \u5f00\u59cb\uff0c\u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u6216\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 [] \u8bbf\u95ee\u7279\u5b9a\u4e0b\u6807\u5904\u7684\u5143\u7d20\u3002\u6ce8\u610f\uff0c\u4e0b\u6807\u503c\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u8fb9\u754c\uff0c\u5426\u5219\u4f1a\u5f15\u53d1 indexoutofboundsexception\u3002 \u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u7684\u4e0b\u6807\uff1f Java \u6570\u7ec4\u4e0b\u6807\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4f4d\u7f6e\u3002\u8981\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u4e0b\u6807\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a \u4f7f\u7528\u5faa\u73af \u4f7f\u7528 for \u6216 while \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u4f7f\u7528\u4e0b\u6807\u53d8\u91cf\u6765\u83b7\u53d6\u5f53\u524d\u5143\u7d20\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3, 4, 5}; \/\/ \u4f7f\u7528 for \u5faa\u73af\u83b7\u53d6\u6570\u7ec4\u4e0b\u6807 for (int i = 0; i &lt; arr.length; i++) { System.out.println(&#8220;\u5143\u7d20 &#8221; + arr[i] + &#8221; \u7684\u4e0b\u6807\u4e3a &#8221; + i); } \u767b\u5f55\u540e\u590d\u5236 [&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-65221","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65221","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=65221"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65221\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}