Type Inference from Arguments

Java-Type Inference from Arguments

Type Inference from Arguments Generally generic method infer its type from its argument. For example , in the following generic method showAndGetV( ) calls look like normal method calls. But what if there is more than one argument? For example, following generic method showAndGetV( ) contain two arguments : All looks well when we give it … Read more…

Type Inference from Assignment Context

Java-Type Inference from Assignment Context

Type Inference from Assignment Context Generally generic method infer its type from its argument. For example, in the following generic method showAndGetV( ) calls look like normal method calls. But what if the type variable isn’t used in any of the arguments or the method has no arguments? Suppose the method only has a parametric … Read more…

Scope of Generic Method Type Parameters

Java-Generic Methods

Generic Methods It is possible to declare a generic method that uses one or more type parameters of its own. You can define generic methods in an ordinary or generic class. Methods within a generic type definition can also have independent type parameters. Generic methods are smarter and can figure out their parameter types from their usage … Read more…

Type Inference

Java-Type Inference

Type Inference One noteworthy JDK 7 feature is that you needn’t specify the value of the type parameter explicitly as you must when invoking generic constructors. The compiler figures out the value of the type parameters by examining the types of the constructor arguments. This process is called type inference. For example, consider the following generic class and its instances : … Read more…