What does arrays tostring do?
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Define graph traversals?
Is arraylist a collection?
Differentiate between hashmap and hashtable.
Which is the parent class of linkedhashset class?
What are the advantages of stack?
What are the advantage of collection classes over arrays?
What are the different types of sorting in data structure?
What is bubble sort?
Why quicksort is faster?
How do you solve a selection sort?
What is difference between arraylist and linkedlist?
Why do we use stacks?