What is the capacity of arraylist?
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In what areas do data structures applied?
Does hashmap preserve insertion order?
Will this code give error if I try to add two heterogeneous elements in the arraylist? And why?
What is binary tree used for?
Define the term “percolate down”?
What is the heap in data structures?
How to find if linked list has loop?
an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like. [ I ended up giving about 4 or 5 different solutions for this, each supposedly better than the others ].
What is the difference between push and pop?
Is an arraylist a vector?
What is the use of sorting?
Evaluate the following prefix expression " ++ 26 + - 1324" (Similar types can be asked)