Can we create a null as a key for a map collection?
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Does hashmap allow duplicate keys?
Is treeset thread safe?
What does sorting an array do?
Is heap sort stable?
How memory is reserved using a declaration statement in data structure?
What are the advantages of stack?
What is the difference between list, set and map?
What is a subtree?
What is treemap chart?
Give us a program to reverse a linked list.
List the area of applications of data structure.
What is data type in data structure?