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Senior Java Developer Tech Lead Interview Questions

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5,584 senior java developer tech lead interview questions shared by candidates

1 - There are 3 classes A, B, C. B extends A, C extends B. There is a mixed collection, containing objects from the 3 classes. Write code/pseudo code for removing only the instances of class B. 2 - try-catch-finally question. 3 - interface vs abstract class 4 - to inspect a code with Strings and StringBuilder objects 5 - how many instances of a servlet are there in memory? Are its member vars thread-safe? Pattern? 6 - diff cookies vs URL rewriting for session management 7 - something about jsps and their scope (do not remember well) 8 - a piece of c*appy code to be refactored.
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Senior Java Developer

Interviewed at Accenture

3.7★
Jun 2, 2020

1 - There are 3 classes A, B, C. B extends A, C extends B. There is a mixed collection, containing objects from the 3 classes. Write code/pseudo code for removing only the instances of class B. 2 - try-catch-finally question. 3 - interface vs abstract class 4 - to inspect a code with Strings and StringBuilder objects 5 - how many instances of a servlet are there in memory? Are its member vars thread-safe? Pattern? 6 - diff cookies vs URL rewriting for session management 7 - something about jsps and their scope (do not remember well) 8 - a piece of c*appy code to be refactored.

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