Describe binary tree and its property.
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Describe what is Node in link list? And name the types of Linked Lists?
What is the complexity of sorting algorithm?
How is a queue works?
Are duplicates allowed in hashmap?
Differentiate between an array and an arraylist.
What is array indexing?
Explain the types of linked lists.
What is an externalizable interface?
How to use appendNode() in linkedlist()?
Why null is allowed in hashmap?
What are the types of algorithms?
What is the difference between sorting and classifying?