{"id":2484,"date":"2023-06-30T14:28:50","date_gmt":"2023-06-30T06:28:50","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2484"},"modified":"2023-06-30T15:11:13","modified_gmt":"2023-06-30T07:11:13","slug":"java%e4%b8%ad%e5%b0%86-int-%e6%95%b0%e7%bb%84-%e8%bd%ac%e6%8d%a2%e4%b8%ba-list%ef%bc%88arraylist%ef%bc%89","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/java\/java%e4%b8%ad%e5%b0%86-int-%e6%95%b0%e7%bb%84-%e8%bd%ac%e6%8d%a2%e4%b8%ba-list%ef%bc%88arraylist%ef%bc%89\/","title":{"rendered":"Java\u4e2d\u5c06 int[] \u6570\u7ec4 \u8f6c\u6362\u4e3a List\uff08ArrayList\uff09"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"\u524d\u8a00\">\u524d\u8a00<\/h1>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8bf4\u8d77\u6570\u7ec4\u8f6c\u6362\u6210 ArrayList\uff0c\u5f88\u591a\u540c\u5b66\u7b2c\u4e00\u53cd\u5e94\u5c31\u662f\u904d\u5386\u6570\u7ec4\uff0c\u5c06\u5143\u7d20\u9010\u4e2a\u6dfb\u52a0\u5230 ArrayList \u4e2d\uff0c\u4f46\u662f\u8fd9\u4e2a\u770b\u7740\u5c31lower\uff0c\u4e00\u822c\u4e0d\u4f1a\u8fd9\u4e48\u7b54\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u9a6c\u4e0a\u5c31\u4f1a\u60f3\u5230Arrays\u5de5\u5177\u7c7b\u7684 asList \u65b9\u6cd5\uff0c\u5982\u679c\u4f60\u8fd9\u4e48\u7b54\uff0c\u90a3\u4e48\u606d\u559c\u4f60\uff0c\u7b54\u9519\u5165\u5751\u3002<\/p>\n<\/blockquote>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u7528-arrays-\u7684-aslist-\u65b9\u6cd5\u5c06-int-\u88c5\u6362\u6210-arraylist\">\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u7528 Arrays \u7684 asList \u65b9\u6cd5\u5c06 int[] \u88c5\u6362\u6210 ArrayList<\/h1>\n\n\n\n<p>\u5982\u679c\u6b64\u5904\u6570\u7ec4 int[] \u6362\u4f5c\u662f Integer[] \u6216\u8005\u4efb\u4f55\u4e00\u4e2a\u5f15\u7528\u7c7b\u578b\u5143\u7d20\u7684\u6570\u7ec4\u90fd\u6b63\u786e\uff0cArrays \u7684 asList \u65b9\u6cd5\u53ea\u80fd\u8f6c\u6362\u5f15\u7528\u7c7b\u578b\u5143\u7d20\u7684\u6570\u7ec4\u3002<br>asList \u65b9\u6cd5\u7684\u6e90\u7801\u5c31\u662f\u8fd9\u4e48\u5b9a\u4e49\u7684\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"435\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-1024x435.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-2485 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-1024x435.png 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-300x127.png 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-768x326.png 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-1536x653.png 1536w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453.png 1812w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"435\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-1024x435.png\" alt=\"\" class=\"wp-image-2485\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-1024x435.png 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-300x127.png 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-768x326.png 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453-1536x653.png 1536w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230630062603453.png 1812w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u6ce8\u610f\uff1aArrays.asList(T... a)\u8fd4\u56de\u7684List\u4e2d\u5143\u7d20\u662f\u4e0d\u53ef\u53d8\u7684\u3002<br>\u4ece\u6e90\u7801\u53ef\u4ee5\u770b\u51faArrays.asList(T... a)\u8fd4\u56de\u7684\u662f\u4e00\u4e2aArrayList\uff0c\u4f46\u662f\u8fd9\u4e2aArrayList\u662fArrays\u7684\u5185\u90e8\u7c7b\uff0c\u4e0d\u662f\u6211\u4eec\u96c6\u5408\u6846\u67b6\u4e0b\u7684\u90a3\u4e2aArrayList\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"\u4f7f\u7528stream\u8fdb\u884c\u8f6c\u6362jdk8-\u63a8\u8350\">\u4f7f\u7528stream\u8fdb\u884c\u8f6c\u6362\uff08jdk8 \u63a8\u8350\uff09<\/h1>\n\n\n\n<p>jdk\u7248\u672c\u4f4e\u4e8e1.8\u4e0d\u53ef\u4ee5\u4f7f\u7528\u3002<\/p>\n\n\n\n<p>\u6570\u7ec4\u901a\u8fc7 Arrays \u5de5\u5177\u7c7b\u7684 stream() \u65b9\u6cd5\u8fdb\u884c\u6d41\u5316\uff0c\u83b7\u53d6 Stream \u5bf9\u8c61\u3002boxed()\u65b9\u6cd5\u662f\u7528\u6765\u88c5\u7bb1\u7684\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int&#91;] arys = {1,2,3};\nList&lt;Integer> list = Arrays.stream(arys).boxed().collect(Collectors.toList());\n\n\u8981\u8f6c\u5316\u4e3aArrayList\u8fd8\u9700\u8981\u8fdb\u884c\u4e00\u6b21\u5f3a\u5236\u7c7b\u578b\u8f6c\u5316<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">\n\u904d\u5386\u6570\u7ec4\uff0c\u9010\u4e2a\u52a0\u5165\u5143\u7d20\u5230List\u4e2d\n\u53ef\u4ee5\u4f7f\u7528for\u3001\u589e\u5f3afor\u5faa\u73af\u3001\u8fed\u4ee3\u5668\u3002\n\u4f7f\u7528for\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u6027\u80fd\u7a0d\u5fae\u597d\u90a3\u4e48\u4e00\u4e22\u4e22\u3002\u589e\u5f3afor\u7684\u672c\u8d28\u5c31\u662f\u8fed\u4ee3\u5668\uff0c\u5199\u6cd5\u66f4\u52a0\u7b80\u6d01\u3002\n\u8fd9\u91cc\u4ee3\u7801\u5c31\u505a\u5c55\u793a\u4e86\u3002<\/pre>\n","raw":"","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u8bf4\u8d77\u6570\u7ec4\u8f6c\u6362\u6210 ArrayList\uff0c\u5f88\u591a\u540c\u5b66\u7b2c\u4e00\u53cd\u5e94\u5c31\u662f\u904d\u5386\u6570\u7ec4\uff0c\u5c06\u5143\u7d20\u9010\u4e2a\u6dfb\u52a0\u5230 ArrayList 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