Is hashmap a collection?
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What is difference between tree and binary tree?
What is linked list in data structure?
Differentiate between arraylist and linkedlist.
Q#1: An algorithm is made up of 2 modules M1 and M2.If order of M1 is F(n) and order of M2 is g (n) then what is the order of the algorithm. Q # 2 : How many binary trees are possible with 3 nodes? with 4 nodes?
Construct a doubly linked list using a single pointer in each node?
What does the dummy header in linked list contain?
What is the difference between list, set and map?
Is arraylist synchronized?
Define an algorithm.
Can we null keys in treemap?
Is queue fifo or lifo?
Why linked list is required?