Does treemap preserve order?
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Explain the uses of b+ tree.
What is difference between hashmap and treemap?
Is linkedlist thread safe?
Why is hashset not ordered?
Which process places data at the back of the queue?
Differentiate between failfast and failsafe.
What is array and its types with example?
Can treeset contain duplicates?
Explain stacks and queues in detail.
What does args stand for?
Can arraylist shrink?
What is mean by merge sort?