Domande di colloquio per Software Engineer Java presso Nokia

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1) hashcode question How Hashmap Works? How Key will work if we are taking name as key in Product{name,price} class Write hashcode function for it 2)Designing Database 1) there are items and create table for that a. Iphone RED 16 GB,Iphone Black 32 GB b. Pencil c.Laptop Bag 14" Red, 20" black 2) Designing Database for a hierarchy as we see in website Electrinic Items--->mobile----->Iphone 3) Data structure how many times this array has been reversed? [14,18,1,5,7,11] 4)How will you arrange different classes in spring boot project ? suppose there are 100 controller classes,50 repository classes,100 DAO classes then how will you arrange them in different packages.