Difference between arrays and linked list?
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Write a program to insert an element and in the specific position in the array?
Suppose in an integer array, there is 1 to 100 number, out of one is duplicate, how to find?
Does arraylist contain duplicates?
Why do we use stacks?
Reverse a linked list from the middle.
Can a stack be described as a pointer? Explain.
What is mean by sorting?
Which sort is stable?
Is hashmap part of collection?
Define degree of the node?
Does arraylist maintain insertion order?
What is inserting in data structure?