Interview Questions and Answers for 'General electric' | Search Interview Question

Interview Questions and Answers for 'General electric' - 12 question(s) found - Order By Rating

Q1. What is abstraction ?

Design

Ans. Abstraction is a process of hiding the implementation details and describing only the functionality to the user.

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Q2. How do you keep yourself aupdated with the changes in technologies ?

General

^{This question was recently asked at 'Sofi,Overstock.com,General Electric (GE)'.This question is still unanswered. Can you please provide an answer.}

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_{Like Discuss Correct / Improve Asked in 3 Companies}

Q3. How to create list that will sort it's elements dynamically?

Algorithm

Ans. Override the behavior of collection class to sort the list upon each element addition. Though it's not recommended as list are sorting heavy data structures.

List<MyType> list = new ArrayList<MyType>() {
public boolean add(MyType mt) {
super.add(mt);
Collections.sort(list, comparator);
return true;
}
};

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_{Like Discuss Correct / Improve Asked in 1 Companies intermediate}

Very Frequently asked to Senior Software Engineers or Developers.

Q4. Describe some of the Design Patterns you have used ?

Design

Ans. [Open Ended Answer]

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_{Like Discuss Correct / Improve design patterns Asked in 17 Companies intermediate frequent}

Q5. What is a Test Dependency Scope in Maven ?

Maven

Ans. This scope indicates that the dependency is not required for normal use of the application, and is only available for the test compilation and execution phases. This scope is not transitive.

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Frequently asked. Among first few questions in the J2EE segment of interview.

Q6. What is deployment descriptor ?

or

What is the use of deployment descriptor ?

Java EE

Ans. Deployment Descriptor which is usually web.xml is used to specify the classes, resources and configuration of the application and how the web server uses them to serve web requests.This file is usually added to WEB-INF folder and contains following

* Servlet entries and url mapping
* Plugins
* Some info regarding authentication / filters
* Landing Page
* Event Handlers

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_{Like Discuss Correct / Improve web.xml servlets deployment descriptor Asked in 15 Companies basic frequent}

Try 1 Question(s) Test

Very Frequently asked Spring question.

Q7. What is bean auto wiring?

Spring

Ans. The Spring container is able to autowire relationships between collaborating beans. This means that it is possible to automatically let Spring resolve collaborators (other beans) for your bean by inspecting the contents of the BeanFactory without using and elements.

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Q8. What is a ConcurrentHashMap ?

Core Java

Ans. ConcurrentHashMap is a hashMap that allows concurrent modifications from multiple threads as there can be multiple locks on the same hashmap.

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Frequently asked in Phone Interviews.

Q9. What the Bean scopes provided by Spring ?

Spring

Ans. Singleton , Prototype , Request , Session , global-session

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Frequently asked in Phone Interviews.

Q10. What are the various Auto Wiring types in Spring ?

Ans. By Name , By Type and Constructor.

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Q11. When should we use prototype scope and singleton scope for beans ?

Spring

Ans. We should use singleton scope for beans when they are stateless and prototype when they are stateful.

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Almost sure to be asked in every company using any Dependency Injection framework ( Spring, Guice etc )

Q12. What is Dependency Injection or IOC ( Inversion of Control ) ?

Design

Ans. It is a Design Pattern that facilitates loose coupling by sending the dependency information ( object references of dependent object ) while building the state of the object. Objects are designed in a manner where they receive instances of the objects from other pieces of code, instead of constructing them internally and hence provide better flexibility.

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_{Like Discuss Correct / Improve design patterns ioc ( Inversion of Control ) dependency injection Asked in 83 Companies intermediate frequent}

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