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.
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 :
Ans. Frankly saying I dont see much use of method overloading as its just little design convenience as you can use the same name but still have binding to different methods depending on the need.
Method overriding is really important and is much more useful than method overloading. Along with other programming concepts like interfaces and dependency injection , it facilitates the development of software as libraries and plug-gable components.
Help us improve. Please let us know the company, where you were asked this question :
Ans. @Autowired and @Inject are similar in terms of functionality they achieve. @Inject is part of a new Java technology called CDI that defines a standard for dependency injection whereas @Autowired is a Spring specific annotation for dependency injection.
Help us improve. Please let us know the company, where you were asked this question :
Ans. 1. In Setter Injection, partial injection of dependencies can possible, means if we have 3 dependencies like int, string, long, then its not necessary to inject all values if we use setter injection. If you are not inject it will takes default values for those primitives1. In constructor injection, partial injection of dependencies cannot possible, because for calling constructor we must pass all the arguments right, if not so we may get error
2. Setter Injection will overrides the constructor injection value, provided if we write setter and constructor injection for the same property [i already told regarding this, hope you remember ] But, constructor injection cannot overrides the setter injected values
3. If we have more dependencies for example 15 to 20 are there in our bean class then, in this case setter injection is not recommended as we need to write almost 20 setters right, bean length will increase. In this case, Constructor injection is highly recommended, as we can inject all the dependencies with in 3 to 4 lines [i mean, by calling one constructor]
4. Setter injection makes bean class object as mutable [We can change ] .Constructor injection makes bean class object as immutable [We cannot change ]
Help us improve. Please let us know the company, where you were asked this question :
Ans. Setter Injection in Spring is a type of dependency injection in which the framework injects the dependent objects into the client using a setter method.
Help us improve. Please let us know the company, where you were asked this question :
More than 3000 questions in repository.
Almost sure to be asked in every company using any Dependency Injection framework ( Spring, Guice etc ) 
Discuss 
design patterns ioc ( Inversion of Control ) dependency injection 
Asked in 83 Companies 
intermediate 
frequent
