How can you implement a stack?
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Differentiate between arraylist and linkedlist.
Classify the Hashing Functions based on the various methods by which the key value is found.
What is difference between for loop and foreach?
Explain Stack
an array t[100] which contains numbers between 1..99. Return the duplicated value. Try both O(n) and O(n-square).
Does hashmap preserve insertion order?
Can arraylist be resized?
How does hashset maintain order?
What are arrays used for?
Does hashtable allow null values?
Write a program to reverse a single linked list.
What is raid (redundant array of inexpensive disks)? Explain its level?