What is the root class of java ? Tell me some of the main methods of Object class you know? What does the method NotifyAll() does ? What is the use of concurrentHashMap() in multithreading? What are different kind of Indexes in SQL? What are difference between DELETE and TRUNCATE in SQL?
Given an array of integers find a second lowest integer
Described in detail in the interview process section
Questions from multithreading
Write a function to check if the input number is a power of 10.
Given an array of integers, and a number ‘sum’, find the number of pairs of integers in the array whose sum is equal to ‘sum’.
get(n) Big O complexity of different data structure
some questions on collections
difference between post and put in REST web services and when you used in your project
Find the cycle in a linked list. Linked list working. How hashMap, tree map works. Pseudo code to insert element into Binary search tree (iterative & recursive)
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