{"id":94423,"date":"2024-03-21T17:54:16","date_gmt":"2024-03-21T08:54:16","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/"},"modified":"2024-03-27T04:43:52","modified_gmt":"2024-03-26T19:43:52","slug":"java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/","title":{"rendered":"java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f"},"content":{"rendered":"<p>Java\u3067\u306fjava.io.File\u30af\u30e9\u30b9\u3092\u7528\u3044\u3066\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3059\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.io.File;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">DiskInfo<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u6839\u76ee\u5f55<\/span>\r\n        File[] roots = File.listRoots();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u904d\u5386\u6839\u76ee\u5f55<\/span>\r\n        <span class=\"hljs-keyword\">for<\/span> (File root : roots) {\r\n            System.out.println(<span class=\"hljs-string\">\"\u6587\u4ef6\u7cfb\u7edf\u6839\u76ee\u5f55: \"<\/span> + root.getAbsolutePath());\r\n            System.out.println(<span class=\"hljs-string\">\"\u603b\u7a7a\u95f4: \"<\/span> + root.getTotalSpace() + <span class=\"hljs-string\">\" bytes\"<\/span>);\r\n            System.out.println(<span class=\"hljs-string\">\"\u53ef\u7528\u7a7a\u95f4: \"<\/span> + root.getUsableSpace() + <span class=\"hljs-string\">\" bytes\"<\/span>);\r\n            System.out.println(<span class=\"hljs-string\">\"\u5df2\u7528\u7a7a\u95f4: \"<\/span> + (root.getTotalSpace() - root.getUsableSpace()) + <span class=\"hljs-string\">\" bytes\"<\/span>);\r\n            System.out.println();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>File.listRoots()\u30e1\u30bd\u30c3\u30c9\u306f\u3001File\u914d\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002\u5404\u8981\u7d20\u306f\u30eb\u30fc\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002getAbsolutePath\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30eb\u30fc\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u7d76\u5bfe\u30d1\u30b9\u3092\u53d6\u5f97\u3057\u3001getTotalSpace\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u7dcf\u5bb9\u91cf\u3092\u53d6\u5f97\u3057\u3001getUsableSpace\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u4f7f\u7528\u53ef\u80fd\u306a\u5bb9\u91cf\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u3089\u306e\u5dee\u3092\u8a08\u7b97\u3057\u3066\u4f7f\u7528\u3055\u308c\u305f\u5bb9\u91cf\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3067\u306fjava.io.File\u30af\u30e9\u30b9\u3092\u7528\u3044\u3066\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3059\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002 import java.io.File; public class [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-94423","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"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\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f - Blog - Silicon Cloud<\/title>\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\/ja\/blog\/java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\" \/>\n<meta property=\"og:description\" content=\"Java\u3067\u306fjava.io.File\u30af\u30e9\u30b9\u3092\u7528\u3044\u3066\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3059\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002 import java.io.File; public class [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-21T08:54:16+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-26T19:43:52+00:00\" \/>\n<meta name=\"author\" content=\"\u6d77\u6597, \u8475\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6d77\u6597, \u8475\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/\",\"name\":\"java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#website\"},\"datePublished\":\"2024-03-21T08:54:16+00:00\",\"dateModified\":\"2024-03-26T19:43:52+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/20cfc053626f4d45c0fa7a4e7964b5b6\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/ja\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"ja\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/20cfc053626f4d45c0fa7a4e7964b5b6\",\"name\":\"\u6d77\u6597, \u8475\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/25aec9a18954b6bfb7e4f7219c2923d62c6f0c9f4d5c0171228fe41751c0ab7a?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/25aec9a18954b6bfb7e4f7219c2923d62c6f0c9f4d5c0171228fe41751c0ab7a?s=96&d=mm&r=g\",\"caption\":\"\u6d77\u6597, \u8475\"},\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/author\/kaitoaoi\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\/","og_locale":"ja_JP","og_type":"article","og_title":"java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f","og_description":"Java\u3067\u306fjava.io.File\u30af\u30e9\u30b9\u3092\u7528\u3044\u3066\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3059\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002 import java.io.File; public class [&hellip;]","og_url":"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2024-03-21T08:54:16+00:00","article_modified_time":"2024-03-26T19:43:52+00:00","author":"\u6d77\u6597, \u8475","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"\u6d77\u6597, \u8475"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/","url":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/","name":"java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/ja\/blog\/#website"},"datePublished":"2024-03-21T08:54:16+00:00","dateModified":"2024-03-26T19:43:52+00:00","author":{"@id":"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/20cfc053626f4d45c0fa7a4e7964b5b6"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/ja\/blog\/"},{"@type":"ListItem","position":2,"name":"java\u3067\u30c7\u30a3\u30b9\u30af\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/ja\/blog\/#website","url":"https:\/\/www.silicloud.com\/ja\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"ja"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/20cfc053626f4d45c0fa7a4e7964b5b6","name":"\u6d77\u6597, \u8475","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/25aec9a18954b6bfb7e4f7219c2923d62c6f0c9f4d5c0171228fe41751c0ab7a?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/25aec9a18954b6bfb7e4f7219c2923d62c6f0c9f4d5c0171228fe41751c0ab7a?s=96&d=mm&r=g","caption":"\u6d77\u6597, \u8475"},"url":"https:\/\/www.silicloud.com\/ja\/blog\/author\/kaitoaoi\/"},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e6%83%85%e5%a0%b1%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/posts\/94423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/comments?post=94423"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/posts\/94423\/revisions"}],"predecessor-version":[{"id":174381,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/posts\/94423\/revisions\/174381"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/media?parent=94423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/categories?post=94423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/tags?post=94423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}