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Design - Interview Questions and Answers for 'Deloitte' - 3 question(s) found - Order By Newest

Q1. What is the use of Transient Keyword ?

Ans. It in Java is used to indicate that a field should not be serialized.

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_{Like Discuss Correct / Improve java oops serialization transient java keywords Asked in 39 Companies intermediate frequent}

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Related Questions

Which of the following combination of keywords is illegal in Java ?

a. static and transient
b. transient and final
c. static and synchronized
d. abstract and final

Which keyword is used to provide explicit access of a code block to single thread ?

a. Transient
b. Final
c. Explicit
d. Synchronized

Can we declare static variables as transient ?

What are transient variables in java?

Which of the following is true ?

Variables of an interface are intrinsically ...

a. transient
b. final
c. public
d. static

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

Q2. Explain Singleton Design Pattern ?

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

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Related Questions

Difference between Static and Singleton Class ?

What is the difference between Singleton and Prototype Bean scope in Spring ?

serialization and deserialization of 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;
}

What are design situations to use Singleton and Prototype Design Pattern ?

How to avoid cloning, serialization in the singleton class ?

When singleton can break and how to resolve it

If you are given choice to either load object eagerly or lazily , which one would you use in case of singleton pattern ?

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

Q3. What are different types of IOC containers ?

Ans. J2ee Web Containers and Core Containers

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Related Questions

Difference between == and .equals() ?

Why is String immutable in Java ?

Explain the scenerios to choose between String , StringBuilder and StringBuffer ?

or

What is the difference between String , StringBuilder and StringBuffer ?

What are the difference between composition and inheritance in Java?

Explain OOPs

or

Explain OOPs Principles

or

Explain OOPs Concepts

or

Explain OOPs features

or

Tell me something about OOPs

What is a Lambda Expression ? What's its use ?

Why Char array is preferred over String for storing password?

What are different ways to create String Object? Explain.

Does garbage collection guarantee that a program will not run out of memory?

What is the difference between final, finally and finalize() ?