Interview Questions and Answers for 'ECI Telecom' | Search Interview Question

Interview Questions and Answers for 'ECI Telecom' - 7 question(s) found - Order By Rating

Q1. Design a Coffee machine using Oops concepts.

^{This question was recently asked at 'ECI Telecom'.This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve design design a coffee machine Asked in 1 Companies}

Q2. Write a Program to merge two sorted arrays ?

Data Structure

Ans. We can merge two sorted array by using quick sort algorithm

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve arrays merge sorted arrays Asked in 2 Companies}

Very Frequently asked to Senior Software Engineers or Developers.

Q3. Describe some of the Design Patterns you have used ?

Design

Ans. [Open Ended Answer]

Help us improve. Please let us know the company, where you were asked this question :

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

Q4. Explain JMS ( Java Messaging Services ) ?

JMS

Ans. JMS Provides high-performance asynchronous messaging. It enables Java EE applications to communicate with non-Java systems on top of various transports.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve java j2ee jms Asked in 1 Companies}

Very frequently asked. Usually followed by questions related to private constructor and synchronized access. Frequently asked in JPMorgan and TCS (Based on 2 feedback)

Q5. Explain Singleton Design Pattern ?

Design

Ans. http://www.buggybread.com/2014/03/java-design-pattern-singleton-interview.html

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve java design pattern singleton at&t ebay fidelity india united healthcare india Asked in 46 Companies intermediate frequent}

Very Frequently asked. Have been asked in HCL Technologies very frequently ( based on 3 feedback ). Among first few questions in many interviews.

Q6. Differences between abstract class and interface ?

Core Java

Ans. Abstract classes can have both abstract methods ( method declarations ) as well as concrete methods ( inherited to the derived classes ) whereas Interfaces can only have abstract methods ( method declarations ).

A class can extend single abstract class whereas it can implement multiple interfaces.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve java classes abstract class interfaces abstract class vs interface abstract classes vs interfaces Asked in 82 Companies basic frequent}

Q7. Write code for singleton class

Design

Ans. http://javasearch.buggybread.com/CodeSnippets/searchCodeSamples.php?keyword=singleton+class&category=code

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve singleton code coding design pattern Asked in 1 Companies Intermediate frequent}

Search Interview Questions

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.