Operation system

• [ ] How to create a deadlock.
• [ ] https://www.glassdoor.com/Interview/How-to-implement-a-class-without-instance-QTN_231491.htm

Algorithms

• [ ] http://www.geeksforgeeks.org/array-rotation/
• [ ] http://www.geeksforgeeks.org/nth-node-from-the-end-of-a-linked-list/
• [ ] Iterative traversal of tree
• [ ] https://www.glassdoor.com/Interview/Compare-two-strings-and-see-if-they-have-the-same-frequency-of-letters-in-MAXIMAL-efficiency-QTN_1734817.htm
• [ ] static
• [ ] exception handling
• [ ] https://www.glassdoor.com/Interview/given-a-nested-array-write-a-function-and-turns-it-into-a-single-array-QTN_1208245.htm
• [ ] What is the difference between a Queue and a Stack?
• [ ] How do you perform binary sort?
• [ ] What is FIFO/LIFO?
• [ ] How does mergesort work?
• [ ] https://www.glassdoor.com/Interview/1-Verbal-test-a-What-s-the-difference-between-StringBuffer-and-StringBuilder-b-What-s-the-diff-between-a-linkedList-a-QTN_742194.htm
• [ ] Determine if a binary tree is balanced.
• [ ] Design and implement an iterator for a singly-linked list class.How would you organize a data structure used for parsing arithmetic operations? (Like 3*2 + 4 = 10)
• [ ] Hashtable insertion and Retrieval
• [ ] Balanced Partition problem
• [ ] reverse a byte
• [ ] find if byte a palindrome or not
• [ ] zigzag string
• [ ] https://www.glassdoor.com/Interview/String-reverse-without-using-method-QTN_190805.htm
• [ ] design pattern
• [ ] how would you find the sum of all elements of a tree?
• [ ] Balance Parenthesis [ They expect to apply DS in solving the same]
• [ ] Reverse String on frequency
• [ ] Design multi-threading algorithm
• [ ] Design data base and write SQL code for a project
• [x] JAVA OOP related to abstract class and interface
• [ ] sorting algorithms
• [ ] How would you delete an item from a linked list when all you get is the item itself.
• [ ] Path from one node to another in binary tree
• [ ] Merge sort ,binary sort ,fibannaci series,puzzle,probability,Sql queries,java
• [x] what is the difference between abstract class and interface?
• [ ] Mirror image of a tree
• [ ] Find the size of an object in a dll file wiout using sizeof().
• [ ] Implement the atoi c function
• [ ] Model a Traffic Light System.
• [ ] https://www.glassdoor.com/Interview/foo-int-n-if-n-2-0-return-1-else-return-foo-n-2-QTN_285240.htm
• [ ] I was asked about time complexity, BST deletion and DFS.
• [ ] How to build a tree using linked list?
• [ ] Find longest palindrome in a string.
• [ ] What's different between passing by value, by reference or by pointer if calling the function with wrong type of object