1) why we use static keyword 2) what is the benefit of functional interface. 3) why we are using IntStream 4) Why we are using interface instead of abstract class 5) What is the jvm architecture.
Senior Java Developer Interview Questions
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REST methods
biggest challenge you faced.
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The basic question of almost every interview- walk me through your resume and your previous work. Other questions were based on topics such as: runtime and compile-time polymorphism, OOPS concepts, exception hierarchy, shallow and deep cloning, and multi-threading. The other question was to guess the output of the program.
Questions: Explain some use cases of the Java Spring framework. On what technologies have you worked? What do you know about the Java project in Publicis Sapient? Why do you want to join Publicis Sapient? How much salary hike you are expecting? How can you justify this much hike? Will you be able to handle a team of 5 people?
Can strategy design pattern be used along with Java collections?
1. OOPs concepts and classes 2. Methods and functions 3. Design patterns and their usage 4. Have you worked on Singleton design? What are its pros and cons? 5. Strings, Java templates, error handling and exceptions 6. Multithreading and parallel computing
a. Core Java Concepts b. Data structures and algorithm c. Scenario-based design questions d. Multithreading, parallel computing e. Deadlocks and synchronization f. Java libraries and their real-life usages g. Spring Boot framework h. Java Microservices
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