--- title: A Visual Diff of Java’s Evolution: Inside java.evolved description: java.evolved is a community site that documents how common Java coding patterns have changed across language versions using side-by-side before/after examples.... canonical: https://daily.dev/posts/a-visual-diff-of-java-s-evolution-inside-java-evolved-oqbd6yolj twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A Visual Diff of Java’s Evolution: Inside java.evolved | daily.dev og:description: java.evolved is a community site that documents how common Java coding patterns have changed across language versions using side-by-side before/after examples.... og:url: https://daily.dev/posts/a-visual-diff-of-java-s-evolution-inside-java-evolved-oqbd6yolj og:image: https://api.daily.dev/og/posts/OQBd6YOLJ.png og:image:alt: A Visual Diff of Java’s Evolution: Inside java.evolved og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A Visual Diff of Java’s Evolution: Inside java.evolved **[Foojay.io](https://daily.dev/sources/foojayio)** · 2 min read · 136 upvotes · 4 comments ## Summary java.evolved is a community site that documents how common Java coding patterns have changed across language versions using side-by-side before/after examples. It targets developers working in mixed-era codebases (Java 6, 8, 17+) by showing how existing code would look if written with modern idioms. Examples include replacing verbose data classes with records, using pattern matching in instanceof checks, and leveraging switch expressions. The project is positioned as a practical reference for onboarding and code reviews in mature Java systems. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@hieutran249** · 0 upvotes > very informative website. thanks for sharing **@maurizioturatti** · 0 upvotes > Many people talk about Java like is still Java 8 **@hemna** · 0 upvotes > cool site. Java still sucks. **@hectorh** · 0 upvotes > Thanks for sharing. It's verry usefull --- Tags: [#java](https://daily.dev/tags/java) [View this post on daily.dev](https://daily.dev/posts/a-visual-diff-of-java-s-evolution-inside-java-evolved-oqbd6yolj) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"A Visual Diff of Java’s Evolution: Inside java.evolved","url":"https://daily.dev/posts/a-visual-diff-of-java-s-evolution-inside-java-evolved-oqbd6yolj","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-visual-diff-of-java-s-evolution-inside-java-evolved-oqbd6yolj"},"datePublished":"2026-02-20T18:04:56.523Z","dateModified":"2026-02-20T18:05:15.543Z","description":"java.evolved is a community site that documents how common Java coding patterns have changed across language versions using side-by-side before/after examples....","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/3796e7cf788b373d6f1eec382d15b9ba?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/3796e7cf788b373d6f1eec382d15b9ba?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Foojay.io","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Foojay.io","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/1820f6a6ae944760aa322b67ed85f848","url":"https://daily.dev/sources/foojayio"},"commentCount":4,"discussionUrl":"https://daily.dev/posts/a-visual-diff-of-java-s-evolution-inside-java-evolved-oqbd6yolj","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":136},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":4}],"keywords":"java","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Foojay.io","item":"https://daily.dev/sources/foojayio"},{"@type":"ListItem","position":3,"name":"A Visual Diff of Java’s Evolution: Inside java.evolved"}]} {"@context":"https://schema.org","@type":"WebPage","@id":"https://daily.dev/posts/a-visual-diff-of-java-s-evolution-inside-java-evolved-oqbd6yolj","comment":[{"@type":"Comment","text":"very informative website. thanks for sharing","datePublished":"2026-02-27T01:46:33.683Z","url":"https://daily.dev/posts/OQBd6YOLJ#c-wIhgZsXmV","author":{"@type":"Person","name":"Hieu Tran","url":"https://daily.dev/hieutran249","image":"https://lh3.googleusercontent.com/a/ACg8ocLIA5yIo92P5whwC4c8EJLyorFDwCyKEJKSrWSZYZSl1ynq_XE=s96-c"}},{"@type":"Comment","text":"Many people talk about Java like is still Java 8","datePublished":"2026-03-12T18:13:32.130Z","url":"https://daily.dev/posts/OQBd6YOLJ#c-pYhHJwpZC","author":{"@type":"Person","name":"Maurizio Turatti","url":"https://daily.dev/maurizioturatti","image":"https://avatars.githubusercontent.com/u/365382?v=4"}},{"@type":"Comment","text":"cool site. Java still sucks.","datePublished":"2026-03-11T02:14:54.236Z","url":"https://daily.dev/posts/OQBd6YOLJ#c-MUieOiaaK","author":{"@type":"Person","name":"Chewbacca","url":"https://daily.dev/hemna","image":"https://avatars.githubusercontent.com/u/672207?v=4"}},{"@type":"Comment","text":"Thanks for sharing. It’s verry usefull","datePublished":"2026-03-16T03:38:43.262Z","url":"https://daily.dev/posts/OQBd6YOLJ#c-RSlAE8lw2","author":{"@type":"Person","name":"Hector h","url":"https://daily.dev/hectorh","image":"https://lh3.googleusercontent.com/a/ACg8ocJ_Sd3wDcahlUTAH4Kaps0iyR5gjTFbM01_Gq574dH57vavpA=s96-c"}}]} ```