{"id":6597,"date":"2026-04-13T11:50:42","date_gmt":"2026-04-13T11:50:42","guid":{"rendered":"http:\/\/the-codest.localhost\/dictionary\/immutable-object\/"},"modified":"2026-04-13T11:50:50","modified_gmt":"2026-04-13T11:50:50","slug":"objet-immuable","status":"publish","type":"dictionary","link":"https:\/\/thecodest.co\/fr\/dictionary\/immutable-object\/","title":{"rendered":"Objet immuable"},"content":{"rendered":"

Qu'est-ce qu'un objet immuable ?<\/h1>\n

Un objet immuable est un objet qui ne peut pas \u00eatre modifi\u00e9 une fois qu'il a \u00e9t\u00e9 cr\u00e9\u00e9. En d'autres termes, son \u00e9tat ne peut \u00eatre modifi\u00e9 apr\u00e8s son instanciation. Toute tentative de modification de sa valeur entra\u00eene la cr\u00e9ation d'un nouvel objet avec la valeur mise \u00e0 jour, laissant l'objet original inchang\u00e9.<\/p>\n

Ce concept est souvent utilis\u00e9 dans les les langages de programmation<\/a> qui prennent en charge la programmation fonctionnelle, o\u00f9 l'immuabilit\u00e9 est une caract\u00e9ristique essentielle. Les objets immuables sont utiles dans les situations o\u00f9 l'\u00e9tat d'un objet ne doit pas \u00eatre modifi\u00e9, comme dans les environnements multithreads o\u00f9 l'acc\u00e8s simultan\u00e9 \u00e0 des objets mutables peut conduire \u00e0 des conditions de course et \u00e0 des probl\u00e8mes de s\u00e9curit\u00e9. donn\u00e9es<\/a> corruption.<\/p>\n

Les objets immuables pr\u00e9sentent plusieurs avantages par rapport aux objets mutables. Tout d'abord, ils sont s\u00fbrs pour les threads et peuvent \u00eatre partag\u00e9s en toute s\u00e9curit\u00e9 entre les threads sans qu'il soit n\u00e9cessaire de les synchroniser. Deuxi\u00e8mement, il est plus facile de raisonner sur eux, car leur \u00e9tat ne peut pas changer de mani\u00e8re inattendue. Troisi\u00e8mement, ils peuvent \u00eatre utilis\u00e9s comme cl\u00e9s dans des hachage<\/a> car leur valeur de hachage est fixe et ne change pas au fil du temps.<\/p>\n

Exemples d'objets immuables dans Java<\/a> comprennent String, Integer et LocalDate. Une fois qu'un objet String a \u00e9t\u00e9 cr\u00e9\u00e9, sa valeur ne peut pas \u00eatre modifi\u00e9e. Toute tentative de modification entra\u00eene la cr\u00e9ation d'un nouvel objet String avec la valeur mise \u00e0 jour. De m\u00eame, une fois qu'un objet Integer a \u00e9t\u00e9 cr\u00e9\u00e9, sa valeur ne peut pas \u00eatre modifi\u00e9e.<\/p>\n

Les objets immuables ne conviennent cependant pas \u00e0 toutes les situations. Dans certains cas, les objets mutables sont plus appropri\u00e9s, par exemple lorsque l'\u00e9tat d'un objet doit \u00eatre mis \u00e0 jour fr\u00e9quemment. Dans ce cas, il est important de s'assurer que l'acc\u00e8s aux objets mutables est synchronis\u00e9 afin d'\u00e9viter les conditions de course et la corruption des donn\u00e9es.<\/p>\n

En r\u00e9sum\u00e9, un objet immuable est un objet qui ne peut pas \u00eatre modifi\u00e9 une fois qu'il a \u00e9t\u00e9 cr\u00e9\u00e9. Il est utile dans les situations o\u00f9 l'\u00e9tat d'un objet ne doit pas \u00eatre modifi\u00e9, comme dans les environnements multithreads. Les objets immuables pr\u00e9sentent plusieurs avantages par rapport aux objets mutables, notamment la s\u00e9curit\u00e9 des threads, la facilit\u00e9 de raisonnement et la possibilit\u00e9 d'\u00eatre utilis\u00e9s comme cl\u00e9s dans les tables de hachage et les ensembles.<\/p>","protected":false},"excerpt":{"rendered":"

D\u00e9couvrez les objets immuables en programmation : des objets qui ne peuvent pas \u00eatre modifi\u00e9s une fois cr\u00e9\u00e9s. Les avantages sont notamment la s\u00e9curit\u00e9 des threads et la facilit\u00e9 de raisonnement.<\/p>","protected":false},"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-6597","dictionary","type-dictionary","status-publish","hentry"],"acf":[],"yoast_head":"\nImmutable Object - The Codest<\/title>\n<meta name=\"description\" content=\"Learn about immutable objects in programming: objects that cannot be modified once created. Advantages include thread-safety and ease of reasoning.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecodest.co\/fr\/dictionnaire\/objet-immuable\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Immutable Object\" \/>\n<meta property=\"og:description\" content=\"Learn about immutable objects in programming: objects that cannot be modified once created. Advantages include thread-safety and ease of reasoning.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thecodest.co\/fr\/dictionnaire\/objet-immuable\/\" \/>\n<meta property=\"og:site_name\" content=\"The Codest\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-13T11:50:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thecodest.co\/app\/uploads\/2024\/06\/cover-image.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/dictionary\\\/immutable-object\\\/\",\"url\":\"https:\\\/\\\/thecodest.co\\\/dictionary\\\/immutable-object\\\/\",\"name\":\"Immutable Object - The Codest\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/#website\"},\"datePublished\":\"2026-04-13T11:50:42+00:00\",\"dateModified\":\"2026-04-13T11:50:50+00:00\",\"description\":\"Learn about immutable objects in programming: objects that cannot be modified once created. Advantages include thread-safety and ease of reasoning.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/dictionary\\\/immutable-object\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/thecodest.co\\\/dictionary\\\/immutable-object\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/dictionary\\\/immutable-object\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/thecodest.co\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Dictionary\",\"item\":\"https:\\\/\\\/thecodest.co\\\/sv\\\/ordbok\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Immutable Object\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/#website\",\"url\":\"https:\\\/\\\/thecodest.co\\\/\",\"name\":\"The Codest\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/thecodest.co\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/#organization\",\"name\":\"The Codest\",\"url\":\"https:\\\/\\\/thecodest.co\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/thecodest.co\\\/app\\\/uploads\\\/2024\\\/03\\\/thecodest-logo.svg\",\"contentUrl\":\"https:\\\/\\\/thecodest.co\\\/app\\\/uploads\\\/2024\\\/03\\\/thecodest-logo.svg\",\"width\":144,\"height\":36,\"caption\":\"The Codest\"},\"image\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/pl.linkedin.com\\\/company\\\/codest\",\"https:\\\/\\\/clutch.co\\\/profile\\\/codest\"]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Objet immuable - The Codest","description":"D\u00e9couvrez les objets immuables en programmation : des objets qui ne peuvent pas \u00eatre modifi\u00e9s une fois cr\u00e9\u00e9s. Les avantages sont notamment la s\u00e9curit\u00e9 des threads et la facilit\u00e9 de raisonnement.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/thecodest.co\/fr\/dictionnaire\/objet-immuable\/","og_locale":"fr_FR","og_type":"article","og_title":"Immutable Object","og_description":"Learn about immutable objects in programming: objects that cannot be modified once created. Advantages include thread-safety and ease of reasoning.","og_url":"https:\/\/thecodest.co\/fr\/dictionnaire\/objet-immuable\/","og_site_name":"The Codest","article_modified_time":"2026-04-13T11:50:50+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/thecodest.co\/app\/uploads\/2024\/06\/cover-image.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/thecodest.co\/dictionary\/immutable-object\/","url":"https:\/\/thecodest.co\/dictionary\/immutable-object\/","name":"Objet immuable - The Codest","isPartOf":{"@id":"https:\/\/thecodest.co\/#website"},"datePublished":"2026-04-13T11:50:42+00:00","dateModified":"2026-04-13T11:50:50+00:00","description":"D\u00e9couvrez les objets immuables en programmation : des objets qui ne peuvent pas \u00eatre modifi\u00e9s une fois cr\u00e9\u00e9s. Les avantages sont notamment la s\u00e9curit\u00e9 des threads et la facilit\u00e9 de raisonnement.","breadcrumb":{"@id":"https:\/\/thecodest.co\/dictionary\/immutable-object\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/thecodest.co\/dictionary\/immutable-object\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/thecodest.co\/dictionary\/immutable-object\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/thecodest.co\/"},{"@type":"ListItem","position":2,"name":"Dictionary","item":"https:\/\/thecodest.co\/sv\/ordbok\/"},{"@type":"ListItem","position":3,"name":"Immutable Object"}]},{"@type":"WebSite","@id":"https:\/\/thecodest.co\/#website","url":"https:\/\/thecodest.co\/","name":"The Codest","description":"","publisher":{"@id":"https:\/\/thecodest.co\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/thecodest.co\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/thecodest.co\/#organization","name":"The Codest","url":"https:\/\/thecodest.co\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/thecodest.co\/#\/schema\/logo\/image\/","url":"https:\/\/thecodest.co\/app\/uploads\/2024\/03\/thecodest-logo.svg","contentUrl":"https:\/\/thecodest.co\/app\/uploads\/2024\/03\/thecodest-logo.svg","width":144,"height":36,"caption":"The Codest"},"image":{"@id":"https:\/\/thecodest.co\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/pl.linkedin.com\/company\/codest","https:\/\/clutch.co\/profile\/codest"]}]}},"_links":{"self":[{"href":"https:\/\/thecodest.co\/fr\/wp-json\/wp\/v2\/dictionary\/6597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thecodest.co\/fr\/wp-json\/wp\/v2\/dictionary"}],"about":[{"href":"https:\/\/thecodest.co\/fr\/wp-json\/wp\/v2\/types\/dictionary"}],"version-history":[{"count":1,"href":"https:\/\/thecodest.co\/fr\/wp-json\/wp\/v2\/dictionary\/6597\/revisions"}],"predecessor-version":[{"id":11002,"href":"https:\/\/thecodest.co\/fr\/wp-json\/wp\/v2\/dictionary\/6597\/revisions\/11002"}],"wp:attachment":[{"href":"https:\/\/thecodest.co\/fr\/wp-json\/wp\/v2\/media?parent=6597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}