What is difference between map and hashmap?
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Why linked list is required?
What is data structure and its types?
Differentiate between failfast and failsafe.
Define non-terminal nodes in a tree?
Can hashmap have duplicate keys?
Which interfaces are implemented by linkedhashset?
How can we reverse the order in the treemap?
Define the graph data structure?
What is array and its types in data structure?
What do you know about the big-o notation and can you give some examples with respect to different data structures?
Can you use Bubble Sort To sort the number of elements.
What is the time complexity of selection sort?