For Spring custom services with the only implementation we can use interface + implementation class or can implement the service in one class. Why do we need interfaces if we have the only implementation?
Desarrollador De Software Java Senior Interview Questions
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hashmap, concurrency, collections, code quality, microservices, complexity
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1) Spring lifecycle 2) Basic core java question 3) Implementation of custom arraylist on Eclipse IDE
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How to accept different formats in REST service (XML , JSON)
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