{"id":614,"date":"2018-09-01T17:24:52","date_gmt":"2018-09-01T08:24:52","guid":{"rendered":"https:\/\/ito-u-oti.com\/?p=614"},"modified":"2018-09-01T17:24:52","modified_gmt":"2018-09-01T08:24:52","slug":"post-614","status":"publish","type":"post","link":"https:\/\/ito-u-oti.com\/?p=614","title":{"rendered":"\u6587\u5b57\u5217\u3092Comparator\u306b\u3088\u308b\u4e26\u3073\u66ff\u3048\u3092\u884c\u3046\u969b\u3001\u4efb\u610f\u306e\u9806\u756a\u3067\u884c\u3044\u305f\u3044\u6642"},"content":{"rendered":"

\u6587\u5b57\u5217\u3092Comparator\u306b\u3088\u308b\u4e26\u3073\u66ff\u3048\u3092\u884c\u3046\u969b\u3001\u4efb\u610f\u306e\u9806\u756a\u3067\u884c\u3044\u305f\u3044\u6642<\/h2>\n

Comparator\u3067\u4e26\u3073\u66ff\u3048\u3092\u884c\u3046\u6642\u306e\u6607\u9806\u30fb\u964d\u9806\u306b\u3064\u3044\u3066\u306e\u691c\u8a3c<\/a>\u306b\u3064\u3044\u3066\u306e\u8a18\u4e8b\u3067\u3001
\n\u6587\u5b57\u5217\u306e\u4e26\u3073\u66ff\u3048\u3092\u884c\u3046\u5834\u5408\u3001\u300c.compareTo\u300d\u3092\u4f7f\u3046\u3053\u3068\u3067\u81ea\u7136\u9806\u5e8f\u306b\u3088\u308b\u4e26\u3073\u66ff\u3048\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002
\n\u4eca\u56de\u306f\u4efb\u610f\u306e\u4e26\u3073\u66ff\u3048\u9806\u306b\u30bd\u30fc\u30c8\u3057\u305f\u3044\u6642\u306e\u6761\u4ef6\u5f0f\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u3067\u3059\u3002<\/p>\n

\u4e8b\u524d\u6e96\u5099<\/h2>\n

\u7269\u7406\u3001\u82f1\u8a9e\u3001\u6570\u5b66\u3001\u56fd\u8a9e\u3001\u6b74\u53f2\u3068\u3044\u3046\u5358\u8a9e\u3092\u4efb\u610f\u306e\u9806\u756a\u3067\u30bd\u30fc\u30c8\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n

\u30bd\u30fc\u30c8\u5bfe\u8c61\u30af\u30e9\u30b9<\/h3>\n
\r\npublic class ComparaTarget {\r\n    \r\n    \/**\r\n     * keywordKanji\r\n     * \u4ee5\u4e0b\u306e\u9805\u76ee\u3057\u304b\u5024\u306b\u5165\u3063\u3066\u3053\u306a\u3044\r\n     * 1.\u7269\u7406\r\n     * 2.\u82f1\u8a9e\r\n     * 3.\u6570\u5b66\r\n     * 4.\u56fd\u8a9e\r\n     * 5.\u6b74\u53f2\r\n     *\/\r\n    private String keywordKanji;\r\n\r\n    public String getKeywordKanji() {\r\n        return keywordKanji;\r\n    }\r\n\r\n    public void setKeywordKanji(String keywordKanji) {\r\n        this.keywordKanji = keywordKanji;\r\n    }\r\n}\r\n<\/pre>\n
\u5b9f\u884c\u305d\u306e\uff11\uff08compareTo\u306b\u3088\u308b\u6607\u9806\u30bd\u30fc\u30c8\uff09<\/h2>\n
Comparator<\/h3>\n
\r\n\/**\r\n * \u81ea\u7136\u9806\u5e8f\uff08\u6607\u9806\uff09\u306b\u3088\u308b\u4e26\u3073\u66ff\u3048\r\n * @author ito-u-oti\r\n *\r\n *\/\r\npublic class sort1 implements Comparator<ComparaTarget> {\r\n\r\n    @Override\r\n    public int compare(ComparaTarget o1, ComparaTarget o2) {\r\n        return o1.getKeywordKanji().compareTo(o2.getKeywordKanji());\r\n    }\r\n}\r\n<\/pre>\n
\u5b9f\u884c\u5f8c<\/h3>\n
\r\n    System.out.println("\u2605sort1\u30fb\u30fb\u30fbcompareTo\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u308b\u4e26\u3073\u66ff\u3048\u2605");\r\n    List<ComparaTarget> list1 = setUpList();\r\n    System.out.println("\u2605sort1\u4e26\u3073\u66ff\u3048\u524d\u2605");\r\n    list1.forEach(data -> System.out.println(data.getKeywordKanji()));\r\n    System.out.println("\u2605sort1\u4e26\u3073\u66ff\u3048\u5f8c\u2605");\r\n    Collections.sort(list1, parent.new sort1());\r\n    list1.forEach(data -> System.out.println(data.getKeywordKanji()));\r\n<\/pre>\n
\u7d50\u679c<\/p>\n
\r\n\u2605sort1\u30fb\u30fb\u30fbcompareTo\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u308b\u4e26\u3073\u66ff\u3048\u2605\r\n\u2605sort1\u4e26\u3073\u66ff\u3048\u524d\u2605\r\n\u82f1\u8a9e\r\n\u7269\u7406\r\n\u56fd\u8a9e\r\n\u82f1\u8a9e\r\n\u6b74\u53f2\r\n\u7269\u7406\r\n\u6570\u5b66\r\n\u56fd\u8a9e\r\n\u6b74\u53f2\r\n\u82f1\u8a9e\r\n\u2605sort1\u4e26\u3073\u66ff\u3048\u5f8c\u2605\r\n\u56fd\u8a9e\r\n\u56fd\u8a9e\r\n\u6570\u5b66\r\n\u6b74\u53f2\r\n\u6b74\u53f2\r\n\u7269\u7406\r\n\u7269\u7406\r\n\u82f1\u8a9e\r\n\u82f1\u8a9e\r\n\u82f1\u8a9e\r\n<\/pre>\n
\u5b9f\u884c\u305d\u306e\uff12\uff08\u4efb\u610f\u306e\u9806\u3067\u30bd\u30fc\u30c8\uff09<\/h2>\n
\uff11\u3001\u6b74\u53f2
\n\uff12\u3001\u7269\u7406
\n\uff13\u3001\u82f1\u8a9e
\n\uff14\u3001\u6570\u5b66
\n\uff15\u3001\u56fd\u8a9e
\n\u3068\u3044\u3046\u9806\u756a\u3067\u30bd\u30fc\u30c8\u3092\u304b\u3051\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n
Comparator<\/h3>\n
\r\n\/**\r\n * \u4efb\u610f\u306e\u9806\u5e8f\u306b\u3088\u308b\u4e26\u3073\u66ff\u3048\r\n * @author ito-u-oti\r\n *\r\n *\/\r\npublic class sort3 implements Comparator<ComparaTarget> {\r\n    @Override\r\n    public int compare(ComparaTarget o1, ComparaTarget o2) {\r\n\r\n        int calc = changeKey(o1.getKeywordKanji()) - changeKey(o2.getKeywordKanji());\r\n        return calc;\r\n    }\r\n\r\n    private int changeKey(String str) {\r\n\r\n    switch (str) {\r\n        case "\u7269\u7406":\r\n            return 2;\r\n        case "\u82f1\u8a9e":\r\n            return 3;\r\n        case "\u6570\u5b66":\r\n            return 4;\r\n        case "\u56fd\u8a9e":\r\n            return 5;\r\n        case "\u6b74\u53f2":\r\n            return 1;\r\n        default:\r\n            return 6;\r\n        }\r\n    }\r\n}\r\n<\/pre>\n
\u5b9f\u884c\u5f8c<\/h3>\n
\r\n    System.out.println("");\r\n    System.out.println("\u2605sort3\u30fb\u30fb\u30fbswitch\u5236\u5fa1\u306b\u3088\u308b\u4efb\u610f\u306e\u9806\u3067\u4e26\u3073\u66ff\u3048\u30fb\u305d\u306e\uff12\u2605");\r\n    List<ComparaTarget> list3 = setUpList();\r\n    System.out.println("\u2605sort3\u4e26\u3073\u66ff\u3048\u524d\u2605");\r\n    list3.forEach(data -> System.out.println(data.getKeywordKanji()));\r\n    System.out.println("\u2605sort3\u4e26\u3073\u66ff\u3048\u5f8c\u2605");\r\n    Collections.sort(list3, parent.new sort3());\r\n    list3.forEach(data -> System.out.println(data.getKeywordKanji()));\r\n<\/pre>\n
\u7d50\u679c<\/p>\n
\r\n\u2605sort3\u30fb\u30fb\u30fbswitch\u5236\u5fa1\u306b\u3088\u308b\u4efb\u610f\u306e\u9806\u3067\u4e26\u3073\u66ff\u3048\u30fb\u305d\u306e\uff12\u2605\r\n\u2605sort3\u4e26\u3073\u66ff\u3048\u524d\u2605\r\n\u82f1\u8a9e\r\n\u7269\u7406\r\n\u56fd\u8a9e\r\n\u82f1\u8a9e\r\n\u6b74\u53f2\r\n\u7269\u7406\r\n\u6570\u5b66\r\n\u56fd\u8a9e\r\n\u6b74\u53f2\r\n\u82f1\u8a9e\r\n\u2605sort3\u4e26\u3073\u66ff\u3048\u5f8c\u2605\r\n\u6b74\u53f2\r\n\u6b74\u53f2\r\n\u7269\u7406\r\n\u7269\u7406\r\n\u82f1\u8a9e\r\n\u82f1\u8a9e\r\n\u82f1\u8a9e\r\n\u6570\u5b66\r\n\u56fd\u8a9e\r\n\u56fd\u8a9e\r\n<\/pre>\n
\u3046\u307e\u304f\u30bd\u30fc\u30c8\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n
\u89e3\u8aac<\/h2>\n
Comparator\u306ecompare\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u306f\u300c-1\u300d\u300c0\u300d\u300c1\u300d\u3060\u3051\u3067\u306f\u306a\u3044\u3002<\/strong>
\n\u57fa\u672c\u7684\u306a\u3053\u3068\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u300c\u6b63\u306e\u5024\u300d\u300c0\u300d\u300c\u8ca0\u306e\u5024\u300d\u306b\u3088\u3063\u3066\u5236\u5fa1\u3092\u884c\u3044\u307e\u3059\u3002
\n\u3088\u3063\u3066\u3001\u300c\u6b63\u306e\u5024\u300d\u300c\u8ca0\u306e\u5024\u300d\u306e\u4e2d\u3067\u3082\u9806\u756a\u3092\u6c7a\u3081\u3066\u3042\u3052\u308c\u3070\u4efb\u610f\u306e\u30bd\u30fc\u30c8\u304c\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002
\n\u3058\u3083\u3042\u305d\u308c\u3092\u3069\u306e\u3088\u3046\u306b\u4e8c\u3064\u306e\u6bd4\u8f03\u5bfe\u8c61\u306e\u5024\u3067\u5236\u5fa1\u3059\u308b\u306e\u304b\u3068\u3044\u3046\u3068\u3001\u4e0b\u306e\u8868\u306b\u306a\u308a\u307e\u3059\u3002
\n\"\"
\n\u8868\u5916\u306e\u756a\u53f7\u304c\u30bd\u30fc\u30c8\u306b\u304a\u3051\u308b\u512a\u5148\u9806\u4f4d\u3067\u3059\u3002
\n\uff08\u6b74\u53f2\u306f\u30ea\u30b9\u30c8\u306e\u5148\u982d\u306b\u6765\u3066\u307b\u3057\u3044\u306e\u30671\u3002\u305d\u306e\u6b21\u306b\u7269\u7406\u306a\u306e\u30672\uff09
\n\u8868\u5185\u306e\u6570\u5b57\u306f\u300co1 – o2\u300d\u3092\u8a08\u7b97\u3057\u305f\u6642\u306e\u5024\u3067\u3059\u3002
\no1\u306e\u6b74\u53f2\u3068\u56fd\u8a9e\u306e\u5217\u3092\u898b\u308b\u3068\u5206\u304b\u308a\u3084\u3059\u3044\u306e\u3067\u3059\u304c\u3001
\no1\u304b\u3089\u898b\u305fo2\u306e\u9806\u4f4d\u306e\u4f4d\u7f6e\u304c\u3001\u4e0a\u306b\u884c\u304f\u307b\u3069\u6b63\u306e\u5024\u304c\u5f37\u307e\u308a\u3001\u4e0b\u306b\u884c\u304f\u307b\u3069\u8ca0\u306e\u5024\u304c\u5f37\u307e\u3063\u3066\u3044\u307e\u3059\u3002
\n\u3053\u306e\u76f8\u95a2\u95a2\u4fc2\u304b\u3089compare\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n
\u30bd\u30fc\u30b9\u306fgithub\u306b\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u3002
\nsorted_compareTo<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u5b57\u5217\u3092Comparator\u306b\u3088\u308b\u4e26\u3073\u66ff\u3048\u3092\u884c\u3046\u969b\u3001\u4efb\u610f\u306e\u9806\u756a\u3067\u884c\u3044\u305f\u3044\u6642 Comparator\u3067\u4e26 […]<\/p>\n","protected":false},"author":1,"featured_media":257,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[142,141,96],"class_list":["post-614","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programing","tag-comparator","tag-compare","tag-java"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=\/wp\/v2\/posts\/614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=614"}],"version-history":[{"count":5,"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=\/wp\/v2\/posts\/614\/revisions"}],"predecessor-version":[{"id":623,"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=\/wp\/v2\/posts\/614\/revisions\/623"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=\/wp\/v2\/media\/257"}],"wp:attachment":[{"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ito-u-oti.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}