What is the similarity between a Structure, Union and enumeration?
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How many different trees are possible with 10 nodes ?
What do you mean by garbage collection?
Name few collections map implementations?
Can list contain null values?
Can we put null key in hashmap?
What is the difference between hashmap and arraylist?
Define internal nodes?
Are sets sorted?
Explain about Merge Sort?
What is difference between array and string?
In tree construction which is the suitable efficient data structure? (a) Array (b) Linked list (c) Stack (d) Queue (e) none
Questions related to arrays, such as given a 2 integer array, find the common elements.