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|Java - Interview Questions and Answers|
|Ans. Array List works on Array and when we add an element in middle of the list, Array List need to update the index of all subsequent elements. I the capacity is full, it even may need to move the whole list to a new memory location . Linked List works on Double linked list algorithm and all it has to do is to adjust the address of the previous and next elements.|
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|What is the difference between ArrayList and LinkedList ?|
|If you are given a choice to use either ArrayList and LinkedList, Which one would you use and Why ?|
| Collections.sort can only be performed on ..|
d. Any Collection implementation
| Is this a valid initialization ? Explain.|
Collection<Collection> collection = new LinkedList<LinkedList>();
|In a Linked list with sorted numbers, insert a new numbers while maintaining the sort order.|
| What is the difference between List, Set and Map ?|
What are the different Java Collections Interfaces ?
|Difference between Vector and ArrayList ?|
|Overridden methods must have the same ...|
|Which of the following doesn't extend Collection interface ?|
|Will this code give error if i try to add two heterogeneous elements in the arraylist. ? and Why ?|