Interview Questions and Answers for 'British telecom (bt)' | Search Interview Question - javasearch.buggybread.com
Javasearch.buggybread.com

Search Interview Questions


 More than 3000 questions in repository.
 There are more than 900 unanswered questions.
Click here and help us by providing the answer.
 Have a video suggestion.
Click Correct / Improve and please let us know.
Label / Company      Label / Company / Text

   



Interview Questions and Answers for 'British telecom (bt)' - 2 question(s) found - Order By Newest

Frequently asked in Infosys and HCL Technologies ( Based on 2 feedback )
 Q1. What are different ways of object creation in Java ?Core Java
Ans. Using new operator - new xyzClass()

Using factory methods - xyzFactory.getInstance( )

Using newInstance( ) method - (Class.forName(xyzClass))emp.newInstance( )

By cloning an already available object - (xyzClass)obj1.clone( )

  Sample Code for object initialization using clone

  Sample Code for object initialization using getInstance

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

   Like         Discuss         Correct / Improve     java   oops   object creation   new operator   class.forname   cloning   ebay     Asked in 9 Companies      expert


Related Questions

  Describe what happens when an object is created in Java ?
  Does Constructor creates the object ?
  Difference between new operator and Class.forName().newInstance() ?
  Difference between Class#getInstance() and new operator ?
  In a case where there are no instance variables what does the default constructor initialize?
 How can we prevent duplicate object creation in Java?


  Q2. Difference between Vector and ArrayList ?Core Java
Ans. Vectors are synchronized whereas Array lists are not.

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

   Like         Discuss         Correct / Improve     java   basic interview question   vector   arraylist   collections   synchronization   vector vs arraylist     Asked in 35 Companies      basic        frequent


Related Questions

  What is the difference between ArrayList and LinkedList ?
 If you are given a choice to use either ArrayList and LinkedList, Which one would you use and Why ?
  Difference between HashMap and Hashtable?
  Difference between TreeMap and HashMap ?
  Can you provide some implementation of a Dictionary having large number of words ?
  Will this code give error if i try to add two heterogeneous elements in the arraylist. ? and Why ?
 How is Hashmap internally implemented in Java ?
 what is fail fast and Fail Safe in collections?
  What is a ConcurrentHashMap ?
 Collections.sort can only be performed on ..

a. Set
b. List
c. Map
d. Any Collection implementation



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

Any input from you will be highly appreciated and It will unlock the application for 10 more requests.

Company Name:
Questions Asked: