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Design pattern - Interview Questions and Answers for 'Capgemini' - 2 question(s) found - Order By Newest

Very frequently asked.Usually among first few questions.
  Q1. What is MVC ? Design
Anonymous
Ans. MVC is a Design Pattern that facilititates loose coupling by segregating responsibilities in a Web application

1. Controller receives the requests and handles overall control of the request
2. Model holds majority of the Business logic, and
3. View comprise of the view objects and GUI component

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 Q2. How one dao Implementation object (singleton) can handle multiple requests?Design Pattern2018-01-05 15:26:31

 This question was recently asked at 'Capgemini'.This question is still unanswered. Can you please provide an answer.


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   Like      Discuss      Correct / Improve     singleton     Capgemini


Related Questions

 Difference between Static and Singleton Class ?
 What is the difference between these two approaches of creating singleton Class ?

//Double Checked Locking Code
public static Singleton createInstance() {
   if(singleton == null){
      synchronized(Singleton.class) {
         if(singleton == null) {
            singleton = new Singleton();
         }
      }
   }
   return singleton;
}

//Single checked locking code
public static Singleton createInstance() {
   synchronized(Singleton.class) {
      if(singleton == null) {
         singleton = new Singleton();
      }
   }
   return singleton;
}
  When should we use prototype scope and singleton scope for beans ?
  Explain Singleton Design Pattern ?
  Shouldn't we make a class with all static members is its just expected to be executed as a standalone program with just one thread. Moreover Lets assume that there is no runtime Polymorphism required and there is no need for serialization ?
  Should we have instance variables in the Spring Bean which has been scoped as Singleton ?
  What are stateless objects ? How are they different from immutable objects ? Which of these two is thread safe ?
  Action Class is singleton and hence not thread safe in ..
  Which of the following is not the difference between Singleton and Static class ( Class with static members only ) ?
 Which of the following do you think is the primary reason you would never use a static class even the application doesn't need multiple requests or threads ?

a. Serialization
b. Runtime Polymorphism
c. Lazy Loading
d. Memory




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