javachengxu2

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  泛型是Java SE 1.5的新特性，泛型的本质是参数化类型，也就是说所操作的数据类型被指定为一个参数。这种参数类型可以用在类、接口和方法的创建中，分别称为泛型类、泛型接口、泛型方法。Java语言引入泛型的好处是安全简单。 (Generic is the Java SE 1.5 new features, the nature of generic type parameters, that is operated by the data type is designated as a parameter. This parameter type can be used in class, the creation of interfaces and methods of the respective category as generic, generic interfaces, generic approach. Java language advantages of the introduction of generic security simple.)