What is data structure and why we need them?
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Does arraylist guarantee insertion order?
You are given a singly linked list. How would you find out if it contains a loop or not without using temporary space?
What is difference between map and hashmap?
Are duplicates allowed in hashmap?
What is m way tree in data structure?
What is the meaning of anonymous array? Explain with an example?
What is the data structures used to perform recursion?
What is thread and types of thread?
Give a good data structure for having n queues ( n not fixed) in a finite memory segment. You can have some data-structure separate for each queue. Try to use at least 90% of the memory space.
What is the difference between hashset and hashmap?
What is sorting in data structure?
Can array store heterogeneous data?