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| Design - Interview Questions and Answers for 'Cybage' - 3 question(s) found - Order By Newest | ||||
 Very Frequently asked. Have been asked in HCL Technologies very frequently ( based on 3 feedback ). Among first few questions in many interviews. | ||||
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| 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 : | ||||
 Discuss Correct / Improve  java classes abstract class interfaces abstract class vs interface abstract classes vs interfaces  Asked in 82 Companies  basic  frequent | ||||
 Related Questions | ||||
 What are the different uses of Interfaces in Java ? | ||||
| Why can't we have diamond problem with interfaces ? | ||||
| Why do we need Thread class even in case we execute thread using runnable interface ? | ||||
| What is the difference between List, Set and Map ? or What are the different Java Collections Interfaces ? | ||||
| What are Marker Interfaces ? Name few Java marker interfaces ? | ||||
| Can we declare interface methods as private ? | ||||
| What is comparator interface used for ? | ||||
| What is the use of runnable interface if we can always create a new thread using Thread class ? | ||||
| Which of the following doesn't extend Collection interface ? | ||||
| Almost sure to be asked in every company using any Dependency Injection framework ( Spring, Guice etc ) | ||||
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| 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. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve design patterns ioc ( Inversion of Control ) dependency injection Asked in 83 Companies intermediate frequent | ||||
| Related Questions | ||||
| What are the benefits of Dependency Injection or IOC ? | ||||
| What are different types of dependency injections ? | ||||
| Name few Dependency Injection frameworks ? | ||||
| Why do we need polymorphism in Java ? | ||||
| What are the various Auto Wiring types in Spring ? | ||||
| What is the difference betweeen @Inject and @Autowired ? | ||||
| Which of the following Java features facilitates Dependency Injection - Inheritance or Composition ? | ||||
| What are the different ways in which dependency injection can be done using Spring Framework ? | ||||
| Difference between constructor and setter injection ? | ||||
| Very frequently asked.Usually among first few questions. | ||||
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| 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 | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve j2ee mvc mvc design pattern design pattern struts spring web application web frameworks ebay Asked in 60 Companies basic frequent | ||||
 Try 1 Question(s) Test | ||||
| Related Questions | ||||
| Explain Flow of Spring MVC ? | ||||
| What are the benefits of using Spring Framework ? | ||||
| Why Struts 1 Classes are not Thread Safe whereas Struts 2 classes are thread safe ? | ||||
| What bean scopes does Spring support? Explain them. | ||||
| Which MVC is struts2 based on ? | ||||
| What are different modules of spring ? | ||||
| What is Spring configuration file? | ||||
| Q: What is default scope of bean in Spring framework? | ||||
| What is bean auto wiring? | ||||
