Java-Generics Only with Objects

Generics Only with Objects When declaring an instance of a generic type, the type argument passed to the type parameter must be a class type. You cannot use a primitive type, such as int or char. For example, with GenClass, it is possible to pass any class type to T, but you cannot pass a primitive … Read more…

Java-Generics Safety

Generics Safety Java has always given you the ability to create generalized classes, interfaces, and methods by operating through references of type Object. Because Object is the superclass of all other classes, an Object reference can refer to any type object. Thus, in pre-generics code, generalized classes, interfaces, and methods used Object references to operate … Read more…

Java-Generics

Generics The generics means parameterized types. Parameterized types enable you to create classes, interfaces, and methods in which the type of data upon which they operate is specified as a parameter. Using generics, it is possible to create a single class, that automatically works with different types of data. A class, interface, or method that … Read more…