{"id":32900,"date":"2023-02-02T22:36:27","date_gmt":"2023-02-02T17:06:27","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-java-util-comparator-comparestring-o1-string-o2-method-works\/"},"modified":"2023-02-02T22:36:27","modified_gmt":"2023-02-02T17:06:27","slug":"solved-how-java-util-comparator-comparestring-o1-string-o2-method-works","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-java-util-comparator-comparestring-o1-string-o2-method-works\/","title":{"rendered":"[Solved] How &#8220;java.util.Comparator.compare(String o1, String o2) &#8221; method works"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-37406696\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"37406696\" data-parentid=\"37406550\" data-score=\"5\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p><code>String<\/code>s are comparable in a lexicographic order (i.e., the order they&#8217;d appear in a dictionary). If you want to implement a <code>Comparator<\/code> for clothes  sizes, you&#8217;d have to write the logic yourself. E.g.:<\/p>\n<pre><code>public class ClothesSizeComparator implements Comparator&lt;String&gt; {\n    private static final List&lt;String&gt; SIZES = \n        Arrays.asList(\"XS\", \"S\", \"M\", \"L\", \"XL\", \"XXL\", \"3XL\");\n\n    @Override\n    public int compare(String s1, String s2) {\n        int s1pos = SIZES.indexOf(s1);\n        int s2pos = SIZES.indexOf(s2);\n        return Integer.compare(s1pos, s2pos);\n    }\n}\n<\/code><\/pre>\n<p>Note: This <code>Comparator<\/code> assumes that both strings represent valid clothe sizes. If this assumption can&#8217;t be made, you&#8217;d have to add some error handling.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">1<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved How &#8220;java.util.Comparator.compare(String o1, String o2) &#8221; method works <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Strings are comparable in a lexicographic order (i.e., the order they&#8217;d appear in a dictionary). If you want to implement a Comparator for clothes sizes, you&#8217;d have to write the logic yourself. E.g.: public class ClothesSizeComparator implements Comparator&lt;String&gt; { private static final List&lt;String&gt; SIZES = Arrays.asList(&#8220;XS&#8221;, &#8220;S&#8221;, &#8220;M&#8221;, &#8220;L&#8221;, &#8220;XL&#8221;, &#8220;XXL&#8221;, &#8220;3XL&#8221;); @Override public &#8230; <a title=\"[Solved] How &#8220;java.util.Comparator.compare(String o1, String o2) &#8221; method works\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-how-java-util-comparator-comparestring-o1-string-o2-method-works\/\" aria-label=\"More on [Solved] How &#8220;java.util.Comparator.compare(String o1, String o2) &#8221; method works\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[1880,1196,323],"class_list":["post-32900","post","type-post","status-publish","format-standard","hentry","category-solved","tag-comparator","tag-compare","tag-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] How &quot;java.util.Comparator.compare(String o1, String o2) &quot; method works - JassWeb<\/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:\/\/jassweb.com\/solved\/solved-how-java-util-comparator-comparestring-o1-string-o2-method-works\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] How &quot;java.util.Comparator.compare(String o1, String o2) &quot; method works - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Strings are comparable in a lexicographic order (i.e., the order they&#8217;d appear in a dictionary). If you want to implement a Comparator for clothes sizes, you&#8217;d have to write the logic yourself. E.g.: public class ClothesSizeComparator implements Comparator&lt;String&gt; { private static final List&lt;String&gt; SIZES = Arrays.asList(&quot;XS&quot;, &quot;S&quot;, &quot;M&quot;, &quot;L&quot;, &quot;XL&quot;, &quot;XXL&quot;, &quot;3XL&quot;); @Override public ... 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If you want to implement a Comparator for clothes sizes, you&#8217;d have to write the logic yourself. E.g.: public class ClothesSizeComparator implements Comparator&lt;String&gt; { private static final List&lt;String&gt; SIZES = Arrays.asList(\"XS\", \"S\", \"M\", \"L\", \"XL\", \"XXL\", \"3XL\"); @Override public ... 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