Kuchinja Makiyi, Kurasika Tsika  TL; DR: Paunoshandisa zvinhu zvinochinjika sekiyi mukuunganidzwa kwehashi, kuzvishandura kunotyora zvibvumirano.  Matambudziko 😔  Yakarasika Tsika  Hard Debugging  The Kashoma Kushamisika Principle Kutyora  Usingatarisirwi maitiro  Mhinduro 😃  Shandisa zvinhu   sekiyi. zvisingachinjiki  Kupfuura   zvakanaka. zvakaenzana/hashCode  Shandisa minda yekupedzisira (Kana mutauro wako uchibvumira)  Rehash mushure mekuchinja (Iyi inopfuura-injiniya mhinduro)  Context 💬  Paunoshandisa zvinhu zvinochinjika sekiyi   , uchivashandura kiyi mushure mekunge wawedzera chinhu chine hukama zvinogona kuita kuti isadzoke. muunganidzwa wehashi  Izvi zvinoitika nekuti hashi kodhi inoshanduka uye muunganidzwa haugone kuwana chinhu chiri mubhaketi chairo.  Sample Code 📖  Wrong ❌   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  Right 👉   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  Kuonekwa 🔍  Semi-Automatic  Iwe unogona kuona kunhuhwirira uku nekutarisa kana iwe ukashandisa zvinochinjika zvinhu sekiyi mune hash-based collections.  Zvishandiso zveotomatiki senge linters kana IDE ongororo inogona zvakare mureza mutable makiyi.  Tags 🏷️  Mutability  Level 🔋  Pakati  Nei Hurukuro Huchikosha 🗺️  Iyo   pakati penyika chaiyo uye chirongwa chako chakakosha nekuti inova nechokwadi chekuti zvinhu zvako zvinonyatso kuratidza hukama hwavanofanirwa kumiririra. bijection  Munyika chaiyo, makiyi kazhinji haachinjike (semuenzaniso, maID, mazita).  Paunotevedzera makiyi aya sezvinhu zvinochinjika, unotyora tsamba imwe-kune-imwe pakati penyika chaiyo uye chirongwa chako   . muMAPPER  Paunotyora iyi bijection uchishandisa makiyi anochinja, unoita kuti mepu isaenderane zvichitungamira mukutadza kudzoreredza uye maitiro asingatarisirwe.  AI Generation 🤖  Majenareta eAI anogona kugadzira kunhuwa uku kana vakagadzira zvinhu zvinoshanduka sekiyi vasingatarise zvinorehwa.  Izvi hazviwanzo kuitika sezvo majenareta eAI achitambura   . nekusagadzikana  Kuonekwa kweAI 🥃  Majenareta eAI anogona kuona kunhuhwirira uku nemirayiridzo yekuongorora mashandisirwo ezvinhu zvinochinjika muhash-based collections uye mureza zvinogona kuitika.  Iwe unogona kuraira iyo AI kutsvaga makirasi asina minda   kana nzira dzinogadzirisa mamiriro echinhu mushure mekusikwa. yekupedzisira  Edza Ivo! 🛠   Rangarira: Vabatsiri veAI vanoita zvikanganiso zvakawanda  Pasina Mirayiridzo Yakakodzera  NeMirayiridzo Yakananga   ChatGPT   ChatGPT   Claude   Claude   Kuvhiringidzika   Kuvhiringidzika   Copilot   Copilot   Gemini   Gemini   DeepSeek   DeepSeek   Meta AI   Meta AI  Mhedziso 🏁  Paunoshandisa zvinhu zvinochinjika sekiyi, unogona kutyora chibvumirano pakati pekiyi yenyika uye hashi kodhi.  Shandisa zvinhu zvisingashanduki kudzivirira nyaya iyi.  Hukama 👩‍❤️‍💋‍👨   https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xxxiv   https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xxv   https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xxiv   https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xxxvi   https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xviii   https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xxvi   https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xlii  Mamwe Ruzivo 📕   https://en.wikipedia.org/wiki/Hash_function?embedable=true   https://hackernoon.com/is-it-crystal-clear-for-everybody-that-a-date-should-not-mutate-wuoy3z03?embedable=true  Disclaimer 📘  Code Smells ndiwo   angu. maonero  Credits 🙏  Mufananidzo    naKathyryn Tripp paUnsplash  Chinhu chinonyanya kukosha chechirongwa ndechekuti inozadzisa chinangwa chemushandisi wayo.  CAR Hoare   https://hackernoon.com/400-thought-provoking-software-engineering-quotes?embedable=true  Ichi chinyorwa chikamu cheCodeSmell Series.   https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-i-xqz3evd?embedable=true

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.

Kuchinja Makiyi, Kurasika Kukosha

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