10.2.2 Calling the overridden or hidden base class methodYou can access the base class members inside of a derived class, whether you are overriding a member or hiding a member. This can be useful in a number of situations, such as:To hide an
* The non-static method belongs to the class instance, can be overridden by the quilt class, thus achieves the polymorphic effect;Static methods belong to classes and cannot be rewritten, and therefore polymorphic. *The following is a concrete
Const
Used to define constant values that cannot be changed at run time. Once defined and cannot change its value, an error occurs if the value is changed in the program.
The code is as follows
Copy Code
CALSS
We can think of classes, objects, encapsulation, inheritance, polymorphism, when we raise object-oriented objects. In "JavaScript Advanced Program Design" (People's Posts and telecommunications press, Cao Li, Zhang Xin translated. The English name
We can think of classes, objects, encapsulation, inheritance, polymorphism, when we raise object-oriented objects. In "JavaScript Advanced Program Design" (People's Posts and telecommunications press, Cao Li, Zhang Xin translated. The English name
(1) What is an inline function?An inline function is a member function that is defined within a class, that is, the function body of the function is placed inside the class.(2) Why inline functions are introduced?Of course, the main purpose of
The first way: Factory method
A factory function (factory function) that can create and return objects of a particular type.
function Createcar (scolor) {
var otempcar = new Object;
Otempcar.color = Scolor;
Otempcar.showcolor =
In development, there are some requirements that can sometimes be met. The layout and control system not only provides the use to meet our development, so this time on the line, usually your own custom layout (ViewGroup) and control (View) that. I
Beginners Java people will inadvertently define the constants in the interface, the only reason is that the interface can not be instantiated, and the use of the interface defined by the constant is not attached to the instance. This is mainly the
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