- Write a code Read a JSON file in java and get all objects/array objects from it. - How is Vector different than a List? - Collections vs Collection? - How do you make sure a List is not accessed concurrently? - Are Thread.sleep() and wait method from selenium static? - Can we overload sleep() and wait() methods? - Difference between sleep() and wait() methods - What is Transient in Java? - Explain the whole hierarchy of Collections interface - Is ArrayList thread safe? - How to make a list thread safe? - What is Autoboxing and Unboxing in java? - Wrapper classes in java? - Can we have method implementation inside an Interface? - What is Fail fast in java? - Write a program Find all pairs of elements in an array whose sum is equal to given number array- {4,5,7,11,9,13,8,12,10,10} given number -20. Eg., O/p: should be: 11,9 8,12, 13,7 10,10 - What is fail fast mechanism in Java - Do you know lambda expressions?
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