Kobongola Bafungola, Kobungisa Mituya  TL;DR: Tango osalelaka ba objets mutables lokola ba clés na ba collections hashed, ko changer yango ebukaka ba contrats.  Mikakatano 😔  Mituya oyo ebungaki  Débogage ya makasi  Kobuka mobeko ya etinda oyo ekamwisaka mingi te  Bizaleli oyo ekanisamaki te  Ba solutions 😃  Salelá biloko oyo   lokola bafungola. ekoki kobongwana te  Bolongola   malamu. equals/hashCode  Salelá bisika ya nsuka (Soki monɔkɔ na yo epesi nzela) .  Rehash après mutation (Oyo ezali solution ya sur-ingénierie)  Contexte 💬  Ntango osaleli biloko oyo ekoki kobongwana lokola bafungola na   , kobongola yango fungola nsima ya kobakisa objec oyo etali yango ekoki kosala ete ezwama te. ba collections hashed  Yango esalemaka mpo code ya hash ebongwanaka mpe collection ekoki kozwa objet na seau correct te.  Ndakisa ya Code 📖  Mabe ❌   class MutableKey { int id; MutableKey(int newId) { this.id = newId; } @Override public int hashCode() { return this.id; } @Override public boolean equals(Object objectToCompare) { if (this == objectToCompare) return true; MutableKey that = (MutableKey) objectToCompare; return id == that.id; } } MutableKey key = new MutableKey(42); Map<MutableKey, String> map = new HashMap<>(); map.put(key, "Yes Album"); // The key mutates key.id = 90125; // Now you cannont retrieve the album System.out.println(map.get(key)); // Output: null  Droit 👉   class ImmutableKey { private final int id; ImmutableKey(int newId) { this.id = newId; } @Override public int hashCode() { return this.id; } @Override public boolean equals(Object objectToCompare) { if (this == objectToCompare) return true; ImmutableKey that = (ImmutableKey) objectToCompare; return id == that.id; } } ImmutableKey key = new ImmutableKey(42); Map<ImmutableKey, String> map = new HashMap<>(); map.put(key, "Yes Album"); System.out.println(map.get(key)); // Output: Yes Album  Détection 🔍  Semi-Automatique oyo ezali  Okoki koyeba nsolo oyo na kotalaka soki osaleli biloko oyo ekoki kobongwana lokola bafungola na ba collections basées na hash.  Ba outils automatisés lokola ba linters to ba inspections IDE ekoki pe ko drapeau ba clés mutables.  Tags 🏷️  Bobongwani ya biloko  Niveau 🔋  Ya katikati  Pourquoi Bijection Eza Important 🗺️    entre monde réel na programme na yo ezali important po ezo assurer que ba objets na yo e lakisa na exactitude ba relation oyo esengelaki e représenter. Bijection  Na mokili ya solo, bafungola mbala mingi ekoki kobongwana te (ndakisa, ba ID, bankombo).  Tango ozali ko modeler ba clés wana lokola ba objets mutables, obukaka correspondance moko na moko entre monde réel na programme na yo na   . MAPPER  Tango obuki bijection oyo na kosalelaka ba touches mutables, osali inconsistent ya carte ememaka na ba échecs ya récupération mpe comportement imprévu.  Génération ya AI 🤖  Ba générateurs ya AI ekoki ko créer odeur oyo soki ba générer ba objets mutables comme ba clés sans ko considérer ba implications.  Yango esalemaka mingi te mpo ete ba générateurs ya AI enyokwamaka na   . obsession primitive  Détection ya AI 🥃  Ba générateurs ya AI ekoki ko détecter odeur oyo na ba instructions ya ko analyser usage ya ba objets mutables na ba collections basées na hash pe ko drapeau ba problèmes potentiels.  Okoki kopesa mitindo na AI koluka ba classes oyo ezangi ba champs   to ba méthodes oyo e modifier état ya objet sima ya création. ya suka  Meka Bango! 🛠   Kobosana te: Ba Assistants ya AI basalaka mabunga mingi  Kozanga Malako ya Mabongi  Na Malako ya sikisiki   ChatGPT ya kosolola   ChatGPT ya kosolola   Claude   Claude   Kobulunganisa bato   Kobulunganisa bato   Mokopi ya pilote   Mokopi ya pilote   Ba Géminis   Ba Géminis   Boluka na mozindo   Boluka na mozindo   AI ya méta   AI ya méta  Bosukisi 🏁  Tango ozali kosalela ba objets mutables lokola ba clés, ozali na risque ya kobuka contrat entre état ya clé na code hash.  Salelá biloko oyo ekoki kobongwana te mpo na koboya likambo yango.  Boyokani 👩 ❤️ 💋 👨   https://hackernoon.com/ndenge-ndenge-kozwa-biteni-ya-ko-nsolo-ya-kode-na-yo-eteni-xxxiv   https://hackernoon.com/ndenge-ndenge-kozwa-biteni-ya-ko-kode-na-yo-ya-nsolo-eloko-xxv   https://hackernoon.com/ndenge-ndenge-kozwa-biteni-ya-kosembo-ya-kode-na-yo-eteni-xxiv   https://hackernoon.com/ndenge-nzela-kozwa-biteni-ya-kosembo-ya-kode-na-yo-eteni-xxxvi   https://hackernoon.com/ndenge-ndenge-kozwa-biteni-ya-ko-kode-na-yo-ya-kosembo-eteni-xviii   https://hackernoon.com/ndenge-nzela-kozwa-biteni-ya-kode-nsolo-ya-kode-na-yo-eteni-xxvi   https://hackernoon.com/ndenge-nzela-kozwa-biteni-ya-ko-nsolo-ya-kode-na-yo-ete-xlii  Basango Lisusu 📕   https://fr.wikipedia.org/wiki/Mosala_ya_Hash?embedable=solo   https://hackernoon.com/est-ce-ezali-crystal-clair-mpo na-bato-nyoso-ete-date-esengeli-te-muter-wuoy3z03?embedable=vrai  Bozangi mokumba 📘  Code Smells ezali   na ngai . makanisi  Ba crédits 🙏  Fɔtɔ́ ya   na  Kathyryn Tripp Unsplash  Propriété ya motuya mingi ya programme ezali soki ekokisaka intention ya usager na yango.  MOTUKA Hoare   https://hackernoon.com/400-citations-ingénierie-logiciel-ezali-kolamusa makanisi?embedable=solo  Lisolo oyo ezali na kati ya Série CodeSmell.   https://hackernoon.com/ndenge nini-kozwa-biteni-ya-kosembo-ya-code-na-yo-na-xqz3evd?embedable=solo

The code in this story is for educational purposes. The readers are solely responsible for whatever they build with it.

Winner of Noonies 2020 for the award Hacker Noon Contributor of the Year - REFACTORING.

Kobongola Bafungola, Kobungisa Mituya

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