What is the difference between collections class vs collections interface?
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What is different between array and list?
What is a stable sort?
How do you do binary search?
Why do we need to use computers to help us sort lists?
What is data structure geeksforgeeks?
What is difference between stack and queue?
What are skew trees? For a tree with 4 nodes draw all possible binary? Generalize for n nodes how many binary trees can be drawn?
What is a Queue? Explain its operation with example?
Which sorting algorithm is worst?
What is a string array?
How do you find the depth of a binary tree?
Which sorting is best and why?