What are all the classes and interfaces that are available in the collections?
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What are the two types of data?
How many types of arrays are there?
How do you sort pseudocode?
What is meant by binary tree traversal?
Are duplicates allowed in hashmap?
What do you know about the big-o notation and can you give some examples with respect to different data structures?
Give a basic algorithm for searching a binary search tree?
What is map data structure?
What happens if we put a key object in a hashmap which exists?
What do you mean by structure property in a heap?
How do you replace an element in an arraylist?
What is the difference between hashset and arraylist?