#generic concept

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How to Write Generic Method in Java?

How to Write Generic Method in Java?

There are two places where we can declare type parameter, at class level and at method level. We have already discussed Generic classes,however, coming to method level, a method with type parameter placed before return type is termed as generic method which can be declared in both generic and concrete classes. In simple words, a generic method can be defined as a method declared with type…

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Explain Wildcard Concept And Type of Wildcard in Java Generics

Explain Wildcard Concept And Type of Wildcard in Java Generics

In Java Generics, a Wildcard is represented by a ? or Question mark that resembles Unknown Type which is used to resolve incompatibility issue. Further, Wildcard can be used in various places such as, in form of the type parameter, field, as  return type and local variable. It can’t be used to instantiate a generic class or invoke a generic method. In short, a wildcard concept provides a way to…

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