What is difference between for loop and foreach?
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What is a threaded binary tree? Explain its operation with example?
How can you represent a linked list node?
Explain what is a spanning tree?
What does simulation of queues mean?
what is the need of data structure
What is the time complexity of hashmap get () and put () method?
What the principle of quick sort and its complexity?
List the data structures which are used in hierarchical data model.
Explain different methods in which you can traverse a tree?
What is linked hash set?
Can we put null key in hashmap?
Is arraylist fail fast?