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| Design - Interview Questions and Answers for 'Globallogic' - 2 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 ? | ||||
