Kev siv HashSet hauv C# yog dab tsi?
Kev siv HashSet hauv C# yog dab tsi?
Anonim

Hauv C#, HashSet yog ib qho unordered sau ntawm cov cim tshwj xeeb. Qhov kev sau no tau qhia hauv. NET 3.5. Nws txhawb nqa kev siv cov txheej txheem thiab siv lub rooj hash rau khaws cia.

Ib sab ntawm no, HashSet ua haujlwm C# li cas?

A HashSet object lub peev xwm cia li nce raws li cov ntsiab lus ntxiv rau cov khoom. A HashSet Kev sau tsis raug txheeb xyuas thiab tsis tuaj yeem muaj cov khoom sib npaug. HashSet muab ntau txoj haujlwm ua lej, xws li teeb ntxiv (unions) thiab teeb rho tawm.

Kuj Paub, qhov txawv ntawm HashSet thiab cov npe hauv C# yog dab tsi? 1) Thawj thiab tseem ceeb tshaj plaws Qhov sib txawv ntawm ArrayList thiab HashSet yog tias ArrayList siv Sau npe interface thaum HashSet siv Teeb interface hauv Java. 2) Lwm tus Qhov sib txawv ntawm ArrayList thiab HashSet yog tias ArrayListalllow duplicates thaum HashSet tsis pub duplicates.

Cov lus nug tseem yog, HashSet siv rau dab tsi?

Java HashSet chav kawm yog siv rau tsim ib phau ntawv uas siv ib lub rooj hash rau khaws cia. Nws inherits chav kawm AbstractSet thiab siv Teeb interface. Cov ntsiab lus tseem ceeb ntawm Java HashSet chav kawm yog: HashSet khaws cov khoom los ntawm kev siv lub tshuab hu ua hashing.

Puas yog HashSet sai dua li cov npe?

HashSet vs Sau npe – Muaj () txoj kev. Qhov tshwm sim kom meej meej qhia tau tias tus HashSet muab sai dua nrhiav lub ntsiab tshaj tus Sau npe. Qhov no yog vim tsis muaj duplicate cov ntaub ntawv nyob rau hauv lub HashSet.

Nrov los ntawm cov ncauj lus