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Senior Java Consultant Interview Questions

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48 senior java consultant interview questions shared by candidates

JAVA What is Encapsulation? What is Inheritance? What is the difference between overloading and overriding? What is polymorphism? What is the difference between an Abstract class and an Interface? What is an immutable object? What is the difference between a Set, List and Map? Name a collection that is thread safe? (Vector) What are two ways to implement a Thread in Java? What is a servlet? What is String Builder used for? DATABASES How does JDBC make a query? What is a left inner join? What is an outer join? What is aggregation? Give an example of a SQL query that uses aggregation? DESIGN PATTERNS What is the MVC design pattern? What is the Facade design pattern? What is the Decorator design pattern? HTTP What is the difference between JSON and XML? What are the 7 HTTP request methods? (GET, POST, HEAD, PUT, DELETE, OPTIONS, CONNECT) What is the difference between SOAP and REST? SPRING What is dependency injection in Spring? Several other questions on spring..
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Senior Consultant (Java Developer)

Interviewed at hybris Software

3.9★
Aug 6, 2015

JAVA What is Encapsulation? What is Inheritance? What is the difference between overloading and overriding? What is polymorphism? What is the difference between an Abstract class and an Interface? What is an immutable object? What is the difference between a Set, List and Map? Name a collection that is thread safe? (Vector) What are two ways to implement a Thread in Java? What is a servlet? What is String Builder used for? DATABASES How does JDBC make a query? What is a left inner join? What is an outer join? What is aggregation? Give an example of a SQL query that uses aggregation? DESIGN PATTERNS What is the MVC design pattern? What is the Facade design pattern? What is the Decorator design pattern? HTTP What is the difference between JSON and XML? What are the 7 HTTP request methods? (GET, POST, HEAD, PUT, DELETE, OPTIONS, CONNECT) What is the difference between SOAP and REST? SPRING What is dependency injection in Spring? Several other questions on spring..

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