What is the difference between list, set and map?
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What are scalar values?
Can arraylist store objects?
What is a comparator function?
What is a binary search tree? Explain with example?
What is the time complexity of hashmap get () and put () method?
What is difference between data type and variable?
What is rule regarding overriding equals and hascode method?
What is stack explain with diagram?
If you do not initialize an array what will happen?
Define dynamic data structures?
Does arraylist maintain insertion order?
Define in brief an array.