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Java Support Interview Questions
30,826 java support interview questions shared by candidates
There are three labeled bags filled with color balls. The labels are all INCORRECT and need to find the correct label with just one pick from one bag.
how would you implement data exchange communication between two projects
Can you store null as key or value in Hashmap
The technical interviewer had me write some code to sort a simple number array.
Explain what inheritance is in Java
is it possible to have a static class ?
First Round - Working of Hashmap, ArrayList Linked List, Java Basic questions Second Round - Coding Exercise - implement SecurityDataServices - Objective 1 1) SecurityServiceImpl - methods a)addSecurity(Security s) b)recordTick(long secID, Tick t), c)getPrice(Security s) d) getHistoricalPrice(Security S, TimeStamp asOfNow) 2)SecurityImpl - methods 1) getSecId() 2)getListTicks() 3)getCurrentPrice() 4)recordTick() 3) Tick Impl - methods 1) getPrice(), 2) getTimeStamp() Implement all these classes in 1.5 hr, Use multithreading, I used ConcurrentHashMap and CopyonwriteArraylist use atomic operations like putifAbsent() CodeReview questions - explain the flow of written code, explain java locks, write it using lambda expression, rewrite the code using locks 3rd round - behavioural questions - why do you want to join Sapient? extra activities apart from work? any technology that you follow?
Program to reverse a string
How to avoid deadlocks?
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