How to improve speed accessing many many many small files on their storage.
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1. What is an Interface in Java? 2. ArrayList vs LinkedList. 3. HashMap internal data structure and working. 4. Overloading hashCode method for user defined datatypes. 5. RESTful webservice implementation. 6. What is a collection in MongoDB? 7. Singleton Design Pattern. 8. Test Driven Development. JUnit. Mockito. 9. What is a deadlock? 10. What is continuous integration. 11. Advantages of using Maven.
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design most optimal way of reading 1b very small files and extract most relevant information
About Inheritance and Polymorphism and All the concepts of Programming and OOPS
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