--- title: Flip the Bits of a Number in Java | daily.dev description: A practical guide to flipping bits of an integer in Java, covering both full 32-bit flipping and significant-bit-only flipping. Explains the bitwise NOT... canonical: https://daily.dev/posts/flip-the-bits-of-a-number-in-java-jtjkeix44 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Flip the Bits of a Number in Java | daily.dev og:description: A practical guide to flipping bits of an integer in Java, covering both full 32-bit flipping and significant-bit-only flipping. Explains the bitwise NOT... og:url: https://daily.dev/posts/flip-the-bits-of-a-number-in-java-jtjkeix44 og:image: https://api.daily.dev/og/posts/JTjkEIX44.png og:image:alt: Flip the Bits of a Number in Java 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. # Flip the Bits of a Number in Java **[Baeldung](https://daily.dev/sources/baeldung)** · 6 min read · 5 upvotes · 0 comments ## Summary A practical guide to flipping bits of an integer in Java, covering both full 32-bit flipping and significant-bit-only flipping. Explains the bitwise NOT operator (~), mask-based XOR and AND approaches using Integer.numberOfLeadingZeros() and Integer.highestOneBit(), and alternative methods like arithmetic negation (-n-1) and XOR with -1. Includes JUnit 5 test examples and explains the two's complement implications of each approach. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to Set a Specific Bit of a Number in Java](https://daily.dev/posts/how-to-set-a-specific-bit-of-a-number-in-java-lle5evkiu) · Baeldung · 6 upvotes · 0 comments - [The Freedom of Having No Sign](https://daily.dev/posts/the-freedom-of-having-no-sign-snzslttdh) · Medium · 0 upvotes · 0 comments --- Tags: [#java](https://daily.dev/tags/java) [View this post on daily.dev](https://daily.dev/posts/flip-the-bits-of-a-number-in-java-jtjkeix44) ```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":"Flip the Bits of a Number in Java","url":"https://daily.dev/posts/flip-the-bits-of-a-number-in-java-jtjkeix44","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/flip-the-bits-of-a-number-in-java-jtjkeix44"},"datePublished":"2026-04-07T23:05:21.626Z","dateModified":"2026-04-07T23:05:52.098Z","description":"A practical guide to flipping bits of an integer in Java, covering both full 32-bit flipping and significant-bit-only flipping. Explains the bitwise NOT...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9d8bb35590301be90bda029bf79d2f67?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9d8bb35590301be90bda029bf79d2f67?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Baeldung","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":"Baeldung","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/52cccfb454d946c4b7dfa5e816f9e576","url":"https://daily.dev/sources/baeldung"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/flip-the-bits-of-a-number-in-java-jtjkeix44","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":5},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"java","timeRequired":"PT6M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Baeldung","item":"https://daily.dev/sources/baeldung"},{"@type":"ListItem","position":3,"name":"Flip the Bits of a Number in Java"}]} ```