{"id":37707,"date":"2024-11-26T13:58:17","date_gmt":"2024-11-26T05:58:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37707\/"},"modified":"2024-11-26T13:58:17","modified_gmt":"2024-11-26T05:58:17","slug":"java%e6%95%b0%e7%bb%84get%e6%96%b9%e6%b3%95%e6%80%8e%e4%b9%88%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37707\/","title":{"rendered":"java\u6570\u7ec4get\u65b9\u6cd5\u600e\u4e48\u7528"},"content":{"rendered":"<blockquote><p>\n  java \u6570\u7ec4 get() \u65b9\u6cd5\u7528\u4e8e\u83b7\u53d6\u6570\u7ec4\u4e2d\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002\u5b83\u4ee5\u6307\u5b9a\u7d22\u5f15\u4f5c\u4e3a\u53c2\u6570\uff0c\u8fd4\u56de\u8be5\u7d22\u5f15\u5904\u5b58\u50a8\u7684\u503c\u3002\u65b9\u6cd5\u4e0d\u4f1a\u6267\u884c\u8fb9\u754c\u68c0\u67e5\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u4e4b\u524d\u5e94\u68c0\u67e5\u7d22\u5f15\u662f\u5426\u6709\u6548\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111309183299558.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4get\u65b9\u6cd5\u600e\u4e48\u7528\u63d2\u56fe\" alt=\"java\u6570\u7ec4get\u65b9\u6cd5\u600e\u4e48\u7528\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u6570\u7ec4 get() \u65b9\u6cd5<\/strong><\/p>\n<p>Java \u4e2d\u7684\u6570\u7ec4\u7c7b\u63d0\u4f9b\u4e86 get() \u65b9\u6cd5\uff0c\u7528\u4e8e\u83b7\u53d6\u6570\u7ec4\u4e2d\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002\u5176\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>public T get(int index)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>index\uff1a\u8981\u83b7\u53d6\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002<\/li>\n<\/ul>\n<p><strong>\u4f7f\u7528\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u8981\u4f7f\u7528 get() \u65b9\u6cd5\uff0c\u60a8\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61\u5e76\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\u3002\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u540d\u540e\u9762\u8ddf\u65b9\u62ec\u53f7\u548c\u7d22\u5f15\u6765\u8c03\u7528 get() \u65b9\u6cd5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\n\nint firstNumber = numbers[0]; \/\/ \u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20\nint lastNumber = numbers[numbers.length - 1]; \/\/ \u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u6700\u540e\u4e00\u4e2a\u5143\u7d20<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8fd4\u56de\u7c7b\u578b\uff1a<\/strong><\/p>\n<p>get() \u65b9\u6cd5\u8fd4\u56de\u7279\u5b9a\u7d22\u5f15\u5904\u5b58\u50a8\u7684\u503c\u3002\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff08\u4f8b\u5982 int[]\uff09\uff0c\u8fd4\u56de\u7684\u662f\u57fa\u672c\u7c7b\u578b\u7684\u503c\u3002\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff08\u4f8b\u5982 String[]\uff09\uff0c\u8fd4\u56de\u7684\u662f\u5bf9\u8c61\u7684\u5f15\u7528\u3002<\/p>\n<p><strong>\u8fb9\u754c\u68c0\u67e5\uff1a<\/strong><\/p>\n<p>get() \u65b9\u6cd5\u4e0d\u4f1a\u6267\u884c\u8fb9\u754c\u68c0\u67e5\u3002\u8fd9\u610f\u5473\u7740\u5982\u679c\u60a8\u5c1d\u8bd5\u83b7\u53d6\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u7d22\u5f15\uff0c\u5219\u4f1a\u629b\u51fa IndexOutOfBoundsException\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528 get() \u65b9\u6cd5\u4e4b\u524d\uff0c\u60a8\u5e94\u8be5\u68c0\u67e5\u7d22\u5f15\u662f\u5426\u6709\u6548\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 get() \u65b9\u6cd5\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\n\nfor (int i = 0; i &lt; numbers.length; i++) {\n    System.out.println(numbers[i]); \/\/ \u6253\u5370\u6bcf\u4e2a\u5143\u7d20\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>1\n2\n3\n4\n5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4get\u65b9\u6cd5\u600e\u4e48\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":"<p>java \u6570\u7ec4 get() \u65b9\u6cd5\u7528\u4e8e\u83b7\u53d6\u6570\u7ec4\u4e2d\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002\u5b83\u4ee5\u6307\u5b9a\u7d22\u5f15\u4f5c\u4e3a\u53c2\u6570\uff0c\u8fd4\u56de\u8be5\u7d22\u5f15\u5904\u5b58\u50a8\u7684\u503c\u3002\u65b9\u6cd5\u4e0d\u4f1a\u6267\u884c\u8fb9\u754c\u68c0\u67e5\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u4e4b\u524d\u5e94\u68c0\u67e5\u7d22\u5f15\u662f\u5426\u6709\u6548\u3002 Java \u6570\u7ec4 get() \u65b9\u6cd5 Java \u4e2d\u7684\u6570\u7ec4\u7c7b\u63d0\u4f9b\u4e86 get() \u65b9\u6cd5\uff0c\u7528\u4e8e\u83b7\u53d6\u6570\u7ec4\u4e2d\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002\u5176\u8bed\u6cd5\u5982\u4e0b\uff1a public T get(int index) \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a index\uff1a\u8981\u83b7\u53d6\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002 \u4f7f\u7528\u65b9\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u8981\u4f7f\u7528 get() \u65b9\u6cd5\uff0c\u60a8\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61\u5e76\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\u3002\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u540d\u540e\u9762\u8ddf\u65b9\u62ec\u53f7\u548c\u7d22\u5f15\u6765\u8c03\u7528 get() \u65b9\u6cd5\u3002\u4f8b\u5982\uff1a int[] numbers = {1, 2, 3, 4, 5}; int firstNumber = numbers[0]; \/\/ \u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20 int lastNumber = numbers[numbers.length &#8211; 1]; \/\/ \u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u6700\u540e\u4e00\u4e2a\u5143\u7d20 \u767b\u5f55\u540e\u590d\u5236 \u8fd4\u56de\u7c7b\u578b\uff1a get() \u65b9\u6cd5\u8fd4\u56de\u7279\u5b9a\u7d22\u5f15\u5904\u5b58\u50a8\u7684\u503c\u3002\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff08\u4f8b\u5982 int[]\uff09\uff0c\u8fd4\u56de\u7684\u662f\u57fa\u672c\u7c7b\u578b\u7684\u503c\u3002\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff08\u4f8b\u5982 [&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-37707","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37707","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=37707"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37707\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}