{"id":78145,"date":"2024-03-20T19:26:54","date_gmt":"2024-03-20T10:26:54","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ab%e3%82%88%e3%82%8b%e4%b8%8a%e3%81%a8%e4%b8%8b%e3%81%ae%e3%83%9a%e3%83%bc%e3%82%b8%e3%81%ae%e5%8f%8d%e8%bb%a2%e6%a9%9f%e8%83%bd%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99%e3%82%8b%e6%96%b9\/"},"modified":"2025-08-12T00:47:51","modified_gmt":"2025-08-11T15:47:51","slug":"java%e3%81%ab%e3%82%88%e3%82%8b%e4%b8%8a%e3%81%a8%e4%b8%8b%e3%81%ae%e3%83%9a%e3%83%bc%e3%82%b8%e3%81%ae%e5%8f%8d%e8%bb%a2%e6%a9%9f%e8%83%bd%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99%e3%82%8b%e6%96%b9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ab%e3%82%88%e3%82%8b%e4%b8%8a%e3%81%a8%e4%b8%8b%e3%81%ae%e3%83%9a%e3%83%bc%e3%82%b8%e3%81%ae%e5%8f%8d%e8%bb%a2%e6%a9%9f%e8%83%bd%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99%e3%82%8b%e6%96%b9\/","title":{"rendered":"java\u306b\u3088\u308b\u4e0a\u3068\u4e0b\u306e\u30da\u30fc\u30b8\u306e\u53cd\u8ee2\u6a5f\u80fd\u3092\u5b9f\u88c5\u306e\u65b9\u6cd5"},"content":{"rendered":"<p>Java \u3067\u30da\u30fc\u30b8\u3092\u3081\u304f\u308b\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u624b\u9806\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30c7\u30fc\u30bf\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u683c\u7d0d\u3059\u308b\u305f\u3081\u306e\u30ea\u30b9\u30c8\u3092\u5b9a\u7fa9\u3057\u3001ArrayList \u306a\u3069\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u73fe\u5728\u306e\u30da\u30fc\u30b8\u756a\u53f7\uff08currentPage\uff09\u3092\u683c\u7d0d\u3059\u308b\u6574\u6570\u5909\u6570\u30921\u3067\u521d\u671f\u5316\u3057\u307e\u3059\u3002<\/li>\n<li>\u5404\u30da\u30fc\u30b8\u306b\u8868\u793a\u3059\u308b\u30c7\u30fc\u30bf\u4ef6\u6570\u3092\u4fdd\u6301\u3059\u308b\u6574\u6570\u5909\u6570\u3092\u5b9a\u7fa9\u3059\u308b\uff08pageSize\uff09\u3002<\/li>\n<li>\u30ab\u30ec\u30f3\u30c8\u30da\u30fc\u30b8\u3068\u30da\u30fc\u30b8\u30b5\u30a4\u30ba\u306b\u57fa\u3065\u3044\u3066\u3001\u6307\u5b9a\u3055\u308c\u305f\u30da\u30fc\u30b8\u306e\u30c7\u30fc\u30bf\u3092\u30ea\u30b9\u30c8\u306b\u683c\u7d0d\u3057\u3001\u30c7\u30fc\u30bf\u3092\u30ea\u30b9\u30c8\u306b\u30ed\u30fc\u30c9\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u73fe\u5728\u306e\u30da\u30fc\u30b8\u756a\u53f7\u304c1\u3088\u308a\u5927\u304d\u3044\u5834\u5408\u3001\u3064\u307e\u308a\u524d\u306e\u30da\u30fc\u30b8\u304c\u3042\u308b\u5834\u5408\u306b\u306f\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3066hasPreviousPage\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b<\/li>\n<li>1\u30da\u30fc\u30b8\u306e\u30c7\u30fc\u30bf\u6570\uff0b\u73fe\u5728\u306e\u30da\u30fc\u30b8\u756a\u53f7\u304c\u30c7\u30fc\u30bf\u96c6\u5408\u306e\u7dcf\u6570\u3088\u308a\u5c0f\u3055\u3051\u308c\u3070hasNextPage\u30e1\u30bd\u30c3\u30c9\u3067\u771f\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/li>\n<li>\u524d\u306e\u30da\u30fc\u30b8\u306b\u79fb\u52d5\u3059\u308b\u95a2\u6570\uff08previousPage\uff09\u3092\u4f5c\u6210\u3057\u3066\u3001currentPage\u30921\u6e1b\u7b97\u3057\u3001\u30ea\u30b9\u30c8\u306b\u30c7\u30fc\u30bf\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3057\u307e\u3059\u3002<\/li>\n<li>nextPage\u6a5f\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u6210\uff08currentPage\u306b1\u3092\u52a0\u7b97\u3057\u3001\u30ea\u30b9\u30c8\u306b\u30c7\u30fc\u30bf\u3092\u518d\u30ed\u30fc\u30c9\uff09\u3002<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u306f\u30b3\u30fc\u30c9\u4f8b\u3067\u3059\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.util.ArrayList;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.List;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">PaginationExample<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> List&lt;String&gt; dataList;\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-type\">int<\/span> currentPage;\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-type\">int<\/span> pageSize;\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-title function_\">PaginationExample<\/span><span class=\"hljs-params\">()<\/span> {\r\n        dataList = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ArrayList<\/span>&lt;String&gt;();\r\n        currentPage = <span class=\"hljs-number\">1<\/span>;\r\n        pageSize = <span class=\"hljs-number\">10<\/span>;\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">loadData<\/span><span class=\"hljs-params\">()<\/span> {\r\n        <span class=\"hljs-comment\">\/\/ \u6839\u636ecurrentPage\u548cpageSize\u83b7\u53d6\u6307\u5b9a\u9875\u7684\u6570\u636e\u5e76\u52a0\u8f7d\u5230dataList\u4e2d<\/span>\r\n        <span class=\"hljs-comment\">\/\/ \u4f8b\u5982\uff1a\u4ece\u6570\u636e\u5e93\u6216\u5176\u4ed6\u6570\u636e\u6e90\u4e2d\u83b7\u53d6\u6570\u636e<\/span>\r\n        <span class=\"hljs-comment\">\/\/ dataList = \u6570\u636e\u6e90.getData(currentPage, pageSize);<\/span>\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-type\">boolean<\/span> <span class=\"hljs-title function_\">hasPreviousPage<\/span><span class=\"hljs-params\">()<\/span> {\r\n        <span class=\"hljs-keyword\">return<\/span> currentPage &gt; <span class=\"hljs-number\">1<\/span>;\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-type\">boolean<\/span> <span class=\"hljs-title function_\">hasNextPage<\/span><span class=\"hljs-params\">()<\/span> {\r\n        <span class=\"hljs-keyword\">return<\/span> (currentPage - <span class=\"hljs-number\">1<\/span>) * pageSize &lt; dataList.size();\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">previousPage<\/span><span class=\"hljs-params\">()<\/span> {\r\n        <span class=\"hljs-keyword\">if<\/span> (hasPreviousPage()) {\r\n            currentPage--;\r\n            loadData();\r\n        }\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">nextPage<\/span><span class=\"hljs-params\">()<\/span> {\r\n        <span class=\"hljs-keyword\">if<\/span> (hasNextPage()) {\r\n            currentPage++;\r\n            loadData();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u4f7f\u7528\u4f8b:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Main<\/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-type\">PaginationExample<\/span> <span class=\"hljs-variable\">pagination<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">PaginationExample<\/span>();\r\n        pagination.loadData();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u6253\u5370\u7b2c\u4e00\u9875\u7684\u6570\u636e<\/span>\r\n        System.out.println(pagination.getDataList());\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u7ffb\u5230\u4e0b\u4e00\u9875<\/span>\r\n        pagination.nextPage();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u6253\u5370\u7b2c\u4e8c\u9875\u7684\u6570\u636e<\/span>\r\n        System.out.println(pagination.getDataList());\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u7ffb\u5230\u4e0a\u4e00\u9875<\/span>\r\n        pagination.previousPage();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u6253\u5370\u7b2c\u4e00\u9875\u7684\u6570\u636e<\/span>\r\n        System.out.println(pagination.getDataList());\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u3001loadData() \u30e1\u30bd\u30c3\u30c9\u306f currentPage \u3068 pageSize \u306b\u57fa\u3065\u3044\u3066\u30c7\u30fc\u30bf\u3092\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002hasPreviousPage() \u30e1\u30bd\u30c3\u30c9\u3068 hasNextPage() \u30e1\u30bd\u30c3\u30c9\u306f\u305d\u308c\u305e\u308c\u3001\u524d\u306e\u30da\u30fc\u30b8\u3068\u6b21\u306e\u30da\u30fc\u30b8\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002previousPage() \u30e1\u30bd\u30c3\u30c9\u3068 nextPage() \u30e1\u30bd\u30c3\u30c9\u306f\u305d\u308c\u305e\u308c\u3001\u524d\u306e\u30da\u30fc\u30b8\u3068\u6b21\u306e\u30da\u30fc\u30b8\u306b\u5207\u308a\u66ff\u3048\u308b\u6a5f\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u3067\u30da\u30fc\u30b8\u3092\u3081\u304f\u308b\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u624b\u9806\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002 \u30c7\u30fc\u30bf\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u683c\u7d0d\u3059\u308b\u305f\u3081\u306e\u30ea\u30b9\u30c8\u3092\u5b9a\u7fa9\u3057\u3001ArrayList \u306a\u3069\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002 \u73fe\u5728\u306e\u30da\u30fc\u30b8\u756a\u53f7\uff08currentPage\uff09\u3092\u683c\u7d0d\u3059\u308b\u6574\u6570 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-78145","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"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\u306b\u3088\u308b\u4e0a\u3068\u4e0b\u306e\u30da\u30fc\u30b8\u306e\u53cd\u8ee2\u6a5f\u80fd\u3092\u5b9f\u88c5\u306e\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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