{"id":760,"date":"2024-03-10T09:46:57","date_gmt":"2023-06-21T14:49:33","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e6%a3%80%e6%9f%a5java%e6%95%b0%e7%bb%84%e6%98%af%e5%90%a6%e5%8c%85%e5%90%ab%e6%9f%90%e4%b8%aa%e5%80%bc%ef%bc%9f\/"},"modified":"2025-08-03T06:43:53","modified_gmt":"2025-08-02T22:43:53","slug":"%e5%a6%82%e4%bd%95%e6%a3%80%e6%9f%a5java%e6%95%b0%e7%bb%84%e6%98%af%e5%90%a6%e5%8c%85%e5%90%ab%e6%9f%90%e4%b8%aa%e5%80%bc%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e6%a3%80%e6%9f%a5java%e6%95%b0%e7%bb%84%e6%98%af%e5%90%a6%e5%8c%85%e5%90%ab%e6%9f%90%e4%b8%aa%e5%80%bc%ef%bc%9f\/","title":{"rendered":"Java\u6570\u7ec4\u68c0\u67e5\u5143\u7d20\u5b58\u5728\u6027\u76845\u79cd\u9ad8\u6548\u65b9\u6cd5\uff082023\u6559\u7a0b\uff09"},"content":{"rendered":"<h2>\u5982\u4f55\u68c0\u67e5Java\u6570\u7ec4\u4e2d\u662f\u5426\u5305\u542b\u67d0\u4e2a\u503c\uff1f<\/h2>\n<p>\u6709\u5f88\u591a\u65b9\u6cd5\u53ef\u4ee5\u68c0\u67e5\u4e00\u4e2aJava\u6570\u7ec4\u662f\u5426\u5305\u542b\u7279\u5b9a\u7684\u503c\u3002<\/p>\n<ul class=\"post-ul\">\n<li>\u4f7f\u7528for\u5faa\u73af\u8fdb\u884c\u7b80\u5355\u8fed\u4ee3<\/li>\n<li>\u4f7f\u7528List\u7684contains()\u65b9\u6cd5<\/li>\n<li>\u4f7f\u7528Stream\u7684anyMatch()\u65b9\u6cd5<\/li>\n<li>\u4f7f\u7528Arrays\u7684binarySearch()\u65b9\u6cd5\uff08\u9002\u7528\u4e8e\u5df2\u6392\u5e8f\u6570\u7ec4\uff09<\/li>\n<\/ul>\n<p>\u8ba9\u6211\u4eec\u4e00\u6b21\u6027\u9010\u4e2a\u7814\u7a76\u6240\u6709\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n<h3>\u4f7f\u7528for\u5faa\u73af<\/h3>\n<p>\u8fd9\u662f\u6700\u7b80\u5355\u65b9\u4fbf\u7684\u65b9\u6cd5\u6765\u68c0\u67e5\u6570\u7ec4\u662f\u5426\u5305\u542b\u7279\u5b9a\u503c\u3002\u6211\u4eec\u5c06\u4f7f\u7528for\u5faa\u73af\u904d\u5386\u6570\u7ec4\u5143\u7d20\uff0c\u5e76\u4f7f\u7528equals()\u65b9\u6cd5\u68c0\u67e5\u6570\u7ec4\u5143\u7d20\u662f\u5426\u7b49\u4e8e\u7ed9\u5b9a\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code>String[] vowels = { \"A\", \"I\", \"E\", \"O\", \"U\" };\r\n\r\n\/\/ \u4f7f\u7528\u7b80\u5355\u8fed\u4ee3\u904d\u5386\u6570\u7ec4\u5143\u7d20\r\nfor (String s : vowels) {\r\n\tif (\"E\".equals(s)) {\r\n\t\tSystem.out.println(\"\u5728\u5143\u97f3\u5217\u8868\u4e2d\u627e\u5230\u4e86E\u3002\");\r\n\t}\r\n}\r\n<\/code><\/pre>\n<h3>2. \u4f7f\u7528\u5217\u8868\u7684contains()\u65b9\u6cd5<\/h3>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Arrays\u7c7b\u6765\u83b7\u53d6\u6570\u7ec4\u7684\u5217\u8868\u8868\u793a\u5f62\u5f0f\u3002\u7136\u540e\u4f7f\u7528contains()\u65b9\u6cd5\u6765\u68c0\u67e5\u6570\u7ec4\u662f\u5426\u5305\u542b\u8be5\u503c\u3002\u8ba9\u6211\u4eec\u4f7f\u7528JShell\u6765\u8fd0\u884c\u793a\u4f8b\u4ee3\u7801\u6bb5\u3002<\/p>\n<pre class=\"post-pre\"><code>jshell&gt; String[] vowels = { \"A\", \"I\", \"E\", \"O\", \"U\" };\r\nvowels ==&gt; String[5] { \"A\", \"I\", \"E\", \"O\", \"U\" }\r\n\r\njshell&gt; List vowelsList = Arrays.asList(vowels);\r\nvowelsList ==&gt; [A, I, E, O, U]\r\n\r\njshell&gt; vowelsList.contains(\"U\")\r\n$3 ==&gt; true\r\n\r\njshell&gt; vowelsList.contains(\"X\")\r\n$4 ==&gt; false\r\n<\/code><\/pre>\n<div><img decoding=\"async\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/6564846ca4b2f92e6c72fc51\/10-0.png\" class='post-images' alt=\"Java\u6570\u7ec4\u5305\u542b\u503c\" title=\"Java\u6570\u7ec4\u5305\u542b\u503c\u793a\u4f8b\"><\/div>\n<h3>3. \u4f7f\u7528\u6d41\u7684anyMatch()\u65b9\u6cd5<\/h3>\n<p>\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fJava 8\u6216\u66f4\u9ad8\u7248\u672c\uff0c\u60a8\u53ef\u4ee5\u4ece\u6570\u7ec4\u4e2d\u521b\u5efa\u4e00\u4e2a\u6d41\u3002\u7136\u540e\u4f7f\u7528\u5e26\u6709lambda\u8868\u8fbe\u5f0f\u7684anyMatch()\u65b9\u6cd5\u6765\u68c0\u67e5\u5b83\u662f\u5426\u5305\u542b\u7ed9\u5b9a\u7684\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code>jshell&gt; List vowelsList = Arrays.asList(vowels);\r\nvowelsList ==&gt; [A, I, E, O, U]\r\n\r\njshell&gt; Arrays.stream(vowels).anyMatch(\"O\"::equals);\r\n$5 ==&gt; true\r\n\r\njshell&gt; Arrays.stream(vowels).anyMatch(\"X\"::equals);\r\n$6 ==&gt; false\r\n<\/code><\/pre>\n<h3>4. \u4f7f\u7528Arrays\u7684binarySearch()\u65b9\u6cd5\uff08\u9002\u7528\u4e8e\u5df2\u6392\u5e8f\u6570\u7ec4\uff09<\/h3>\n<p>\u5982\u679c\u4f60\u7684\u6570\u7ec4\u5df2\u7ecf\u6392\u5e8f\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528Arrays\u7c7b\u7684binarySearch()\u65b9\u6cd5\u6765\u68c0\u67e5\u6570\u7ec4\u662f\u5426\u5305\u542b\u7ed9\u5b9a\u7684\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code>String[] vowels = { \"A\", \"I\", \"E\", \"O\", \"U\" };\r\n\r\nSystem.out.println(\"\u672a\u6392\u5e8f\u6570\u7ec4 = \" + Arrays.toString(vowels));\r\n\r\nArrays.parallelSort(vowels);\r\n\r\nSystem.out.println(\"\u5df2\u6392\u5e8f\u6570\u7ec4 = \" + Arrays.toString(vowels));\r\n\r\nint index = Arrays.binarySearch(vowels, \"X\");\r\n\r\nif (index &lt; 0) {\r\n\tSystem.out.println(\"\u5728\u6570\u7ec4\u4e2d\u672a\u627e\u5230X\");\r\n} else {\r\n\tSystem.out.println(\"\u5728\u6570\u7ec4\u4e2d\u627e\u5230\u4e86X\");\r\n}\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre class=\"post-pre\"><code>\u672a\u6392\u5e8f\u6570\u7ec4 = [A, I, E, O, U]\r\n\u5df2\u6392\u5e8f\u6570\u7ec4 = [A, E, I, O, U]\r\n\u5728\u6570\u7ec4\u4e2d\u672a\u627e\u5230X\r\n<\/code><\/pre>\n<h2>\u68c0\u67e5\u6570\u7ec4\u662f\u5426\u5305\u542b\u591a\u4e2a\u503c<\/h2>\n<p>\u5982\u679c\u6211\u4eec\u60f3\u8981\u68c0\u67e5\u6570\u7ec4\u662f\u5426\u5305\u542b\u591a\u4e2a\u503c\uff0c\u600e\u4e48\u529e\uff1f\u5047\u8bbe\u4f60\u60f3\u8981\u68c0\u67e5\u7ed9\u5b9a\u7684\u6570\u7ec4\u662f\u5426\u662f\u6e90\u6570\u7ec4\u7684\u5b50\u96c6\u3002\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u5d4c\u5957\u5faa\u73af\uff0c\u5e76\u9010\u4e2a\u68c0\u67e5\u6bcf\u4e2a\u5143\u7d20\u3002\u6709\u4e00\u79cd\u66f4\u7b80\u6d01\u7684\u65b9\u6cd5\u662f\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u7136\u540e\u4f7f\u7528containsAll()\u65b9\u6cd5\u8fdb\u884c\u68c0\u67e5\u3002<\/p>\n<pre class=\"post-pre\"><code>String[] vowels = { \"A\", \"I\", \"E\", \"O\", \"U\" };\r\nString[] subset = { \"E\", \"U\" };\r\n\r\nboolean foundAll = Arrays.asList(vowels).containsAll(Arrays.asList(subset));\r\n\r\nSystem.out.println(\"\u5143\u97f3\u6570\u7ec4\u5305\u542b\u5b50\u96c6\u4e2d\u7684\u6240\u6709\u5143\u7d20 = \" + foundAll);\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a\u5143\u97f3\u6570\u7ec4\u5305\u542b\u5b50\u96c6\u4e2d\u7684\u6240\u6709\u5143\u7d20 = true<\/p>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<ol>\n<li>Arrays\u7684binarySearch() API\u6587\u6863<\/li>\n<li>Stream\u7684anyMatch() API\u6587\u6863<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u68c0\u67e5Java\u6570\u7ec4\u4e2d\u662f\u5426\u5305\u542b\u67d0\u4e2a\u503c\uff1f \u6709\u5f88\u591a\u65b9\u6cd5\u53ef\u4ee5\u68c0\u67e5\u4e00\u4e2aJava\u6570\u7ec4\u662f\u5426\u5305\u542b\u7279\u5b9a\u7684\u503c\u3002 \u4f7f\u7528for\u5faa\u73af\u8fdb [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[232,250,180,2058,251],"class_list":{"0":"post-760","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-java","10":"tag-2058","11":"tag-251"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java\u6570\u7ec4\u68c0\u67e5\u5143\u7d20\u5b58\u5728\u6027\u76845\u79cd\u9ad8\u6548\u65b9\u6cd5\uff082023\u6559\u7a0b\uff09 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecdJava\u6570\u7ec4\u68c0\u67e5\u5143\u7d20\u662f\u5426\u5b58\u5728\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u5faa\u73af\u3001Arrays.asList()\u3001Stream API\u7b49\u6280\u5de7\u3002\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u548c\u6027\u80fd\u6bd4\u8f83\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u9009\u62e9\u6700\u9002\u5408\u7684\u6570\u7ec4\u5143\u7d20\u67e5\u627e\u65b9\u6848\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5982\u4f55\u68c0\u67e5java\u6570\u7ec4\u662f\u5426\u5305\u542b\u67d0\u4e2a\u503c\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u6570\u7ec4\u68c0\u67e5\u5143\u7d20\u5b58\u5728\u6027\u76845\u79cd\u9ad8\u6548\u65b9\u6cd5\uff082023\u6559\u7a0b\uff09\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecdJava\u6570\u7ec4\u68c0\u67e5\u5143\u7d20\u662f\u5426\u5b58\u5728\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u5faa\u73af\u3001Arrays.asList()\u3001Stream API\u7b49\u6280\u5de7\u3002\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u548c\u6027\u80fd\u6bd4\u8f83\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u9009\u62e9\u6700\u9002\u5408\u7684\u6570\u7ec4\u5143\u7d20\u67e5\u627e\u65b9\u6848\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5982\u4f55\u68c0\u67e5java\u6570\u7ec4\u662f\u5426\u5305\u542b\u67d0\u4e2a\u503c\uff1f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-21T14:49:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-02T22:43:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/6564846ca4b2f92e6c72fc51\/10-0.png\" \/>\n<meta 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Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-06-21T14:49:33+00:00\",\"dateModified\":\"2025-08-02T22:43:53+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/41e222757cdd2a3365361328bd79970a\"},\"description\":\"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecdJava\u6570\u7ec4\u68c0\u67e5\u5143\u7d20\u662f\u5426\u5b58\u5728\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u5faa\u73af\u3001Arrays.asList()\u3001Stream 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