Can arraylist store objects?
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In tree construction which is the suitable efficient data structure? (a) Array (b) Linked list (c) Stack (d) Queue (e) none
What are hashmaps good for?
Which interfaces are implemented by abstractsequentiallist?
What are different sorting algorithms?
Name few classes that implement collection interface?
What is the difference between sorting and classifying?
What is time complexity of sorting algorithms?
If you are given a choice to use either arraylist and linkedlist, which one would you use and why?
What is push and pop in stack?
Define graph?
What are two types of sorting?
Can treeset contain duplicates?