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Implement a function - isSumPair(int[],sum) - which returns true/false if the given sum can be achieved from an addition on two integers in the given list (can appear more then one time and be positive/negative). Follow up - how to improve space complexity?
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Backend Developer

Interviewed at Fiverr Inc.

4.1
Jul 18, 2020

Implement a function - isSumPair(int[],sum) - which returns true/false if the given sum can be achieved from an addition on two integers in the given list (can appear more then one time and be positive/negative). Follow up - how to improve space complexity?

Technical Questions: 1. Three pillars of OOP with explanation of each 2. Final Keyword in Java 3. Abstract Class & Interface difference 4. JSP & Servlets difference 5. What is meant by immutability in Java? 6. Multi-threading - Sleep vs Yield? 7. What is a design pattern and name some. Explain Singleton Design Pattern? 8. protected keyword in access modifiers 9. Continue vs break statement 10. Describe MVC? 11. StringBuffer vs StringBuilder? 12. One logic/algo question: Inserting an element at proper position in a sorted array. They will focus on the very basic logic design like loops, function and their arguments.
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Entry Level Java Developer

Interviewed at RedMane Technology

3.4
Mar 25, 2015

Technical Questions: 1. Three pillars of OOP with explanation of each 2. Final Keyword in Java 3. Abstract Class & Interface difference 4. JSP & Servlets difference 5. What is meant by immutability in Java? 6. Multi-threading - Sleep vs Yield? 7. What is a design pattern and name some. Explain Singleton Design Pattern? 8. protected keyword in access modifiers 9. Continue vs break statement 10. Describe MVC? 11. StringBuffer vs StringBuilder? 12. One logic/algo question: Inserting an element at proper position in a sorted array. They will focus on the very basic logic design like loops, function and their arguments.

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