Java: What is an Exception? Why Exception is required? What is serialization? What is dispatcher Servlet? What is Thread? What Is MultiThreading? What is the Principle of Object-Oriented? Polymorphism Vs Inheritance? Any Design Pattern? How many Collections you have worked till now?
String concepts, Exception handling, core java related questions
Interview don't have good knowledge, I selected but not happy with interviewer questions..
Java OOD concepts Design patterns Algorithm How to make a class immutable? Merge 2 sorted arrays
Past works, concepts about OOP and Java (polymorphism, encapsulation, abstraction, design patterns, interfaces and abstract classes), dynamic programming (Knapsack problem), simple SQL questions and queries, and probability calculation.
The coding test has 3 assignments for just 60 min. time - physically impossible to complete.
General Java questions possibly sourced online.
Explain OOPS concepts by taking real life example? Explain an architecture of a parking system? Swap 2 numbers without 3rd variable? Dependency Injection, Hibernate query language, Inversion of control
Explain Qualifier Annotation of Spring Boot.
Explain"yield" method with respect to multithreading. Also, write a snippet of code to run thread.
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