Differentiate between arraylist and linkedlist.
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Is arraylist synchronized?
Which collection class is thread safe?
How do you sort elements in an arraylist?
Can you declare an array without assigning the size of an array?
What are the disadvantages array implementations of linked list?
Can we create a null as a key for a map collection?
What is the difference between push and pop?
Which sorting is used in collections sort?
Differentiate stack from array?
What is inserting in data structure?
Which sorting algorithm uses minimum number of swaps?
Write an algorithm through which the inserting and deleting of elements can take place in circular queue?