{"id":192,"date":"2022-03-21T02:51:32","date_gmt":"2022-03-20T17:51:32","guid":{"rendered":"https:\/\/www.kd2.jp\/memo3\/?p=192"},"modified":"2022-03-21T03:08:20","modified_gmt":"2022-03-20T18:08:20","slug":"predicate","status":"publish","type":"post","link":"https:\/\/www.kd2.jp\/memo3\/?p=192","title":{"rendered":"Predicate"},"content":{"rendered":"<p>\u30d5\u30a1\u30f3\u30af\u30b7\u30e7\u30ca\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<br \/>\nPredicate \u5f15\u6570\u3042\u308a\u30fb\u623b\u308a\u5024boolean\u3002<br \/>\ntest, and(\u8ad6\u7406\u7a4d), or(\u8ad6\u7406\u548c), negate(\u5426\u5b9a), isEqual(equals)\u30e1\u30bd\u30c3\u30c9\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<div class=\"wp-block-codemirror-blocks code-block \">\n<pre class=\"CodeMirror\" data-setting=\"{&quot;mode&quot;:&quot;clike&quot;,&quot;mime&quot;:&quot;text\/x-java&quot;,&quot;theme&quot;:&quot;eclipse&quot;,&quot;lineNumbers&quot;:true,&quot;lineWrapping&quot;:false,&quot;styleActiveLine&quot;:false,&quot;readOnly&quot;:true,&quot;align&quot;:&quot;&quot;}\">Predicate&lt;Double&gt; pd = arg -&gt; Math.abs(arg - 3.14) &lt; 0.1;\r\nSystem.out.println(pd.test(3.25)); \/\/ false\r\nSystem.out.println(pd.test(3.16)); \/\/ true<\/pre>\n<\/div>\n<p>\u95a2\u6570\u3092\u5909\u6570\u306e\u3088\u3046\u306b\u6271\u3048\u308b\u3002<\/p>\n<div class=\"wp-block-codemirror-blocks code-block \">\n<pre class=\"CodeMirror\" data-setting=\"{&quot;mode&quot;:&quot;clike&quot;,&quot;mime&quot;:&quot;text\/x-java&quot;,&quot;theme&quot;:&quot;eclipse&quot;,&quot;lineNumbers&quot;:true,&quot;lineWrapping&quot;:false,&quot;styleActiveLine&quot;:false,&quot;readOnly&quot;:true,&quot;align&quot;:&quot;&quot;}\">public void doTest1A() {\r\n    Predicate&lt;String&gt; helloPredicate = (arg) -&gt; arg == \"Hello\";\r\n    doTest1Re(helloPredicate);  \/\/ true\r\n}\r\npublic void doTest1B() {\r\n    Predicate&lt;String&gt; eveningPredicate = (arg) -&gt; arg == \"Evening\";\r\n    doTest1Re(eveningPredicate);  \/\/ false\r\n}\r\npublic void doTest1Re(Predicate&lt;String&gt; pd1) {\r\n    System.out.println(pd1.test(\"Hello\"));\r\n}<\/pre>\n<\/div>\n<p>\u8ad6\u7406\u7a4d\u3002<\/p>\n<div class=\"wp-block-codemirror-blocks code-block \">\n<pre class=\"CodeMirror\" data-setting=\"{&quot;mode&quot;:&quot;clike&quot;,&quot;mime&quot;:&quot;text\/x-java&quot;,&quot;theme&quot;:&quot;eclipse&quot;,&quot;lineNumbers&quot;:true,&quot;lineWrapping&quot;:false,&quot;styleActiveLine&quot;:false,&quot;readOnly&quot;:true,&quot;align&quot;:&quot;&quot;}\">Predicate&lt;Integer&gt; multi2 = (arg) -&gt; arg % 2 == 0;  \/\/ 2\u306e\u500d\u6570\r\nPredicate&lt;Integer&gt; multi3 = (arg) -&gt; arg % 3 == 0;  \/\/ 3\u306e\u500d\u6570\r\nPredicate&lt;Integer&gt; multi6 = multi2.and(multi3);     \/\/ 2\u30683\u306e\u500d\u6570 = 6\u306e\u500d\u6570\r\nSystem.out.println(multi6.test(11));                \/\/ false\r\nSystem.out.println(multi6.test(12));                \/\/ true<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30d5\u30a1\u30f3\u30af\u30b7\u30e7\u30ca\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9 Predicate \u5f15\u6570\u3042\u308a\u30fb\u623b\u308a\u5024boolean\u3002 test, and(\u8ad6\u7406\u7a4d), or(\u8ad6\u7406\u548c), negate(\u5426\u5b9a), isEqual(equals)\u30e1\u30bd\u30c3\u30c9\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3002 &hellip; <a class=\"more-link\" href=\"https:\/\/www.kd2.jp\/memo3\/?p=192\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">Predicate<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,3,10],"tags":[],"_links":{"self":[{"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=\/wp\/v2\/posts\/192"}],"collection":[{"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=192"}],"version-history":[{"count":7,"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=\/wp\/v2\/posts\/192\/revisions"}],"predecessor-version":[{"id":199,"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=\/wp\/v2\/posts\/192\/revisions\/199"}],"wp:attachment":[{"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kd2.jp\/memo3\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}