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Java Intern Interview Questions
30,860 java intern interview questions shared by candidates
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?
How to avoid deadlocks?
is it possible to have a static class ?
Can we use the final keyword with the constructor?
About myself and then technical questions
How would you add <div id="1"> hello </div> in jquerry.
Types of IOC container
asked core java questions. If a method is overloaded in a class in the following way public void fun(Object o){ } public void fun(ArrayList a){ } and is invoked in the following manner obj.fun(null) which method will be invoked.
Can you store null as key or value in Hashmap
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