Why is hashmap used?
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What is the use of prototype?
Explain the uses of binary tree.
When will we get ArrayStoreException?
What is the default value of Array?
How would you sort a linked list?
How will you sort the elements of array in descending order?
Will hashmap allow null keys?
What method is used to place a value onto the top of a stack?
What is the difference between null and void?
What is a data structure definition?
How expression trees are gets represented in data structure?
Can we store null in arraylist?