interface meaning

1PHP2 //interface keyword for defining interfaces3 Interfaceicaneat{4 //the method inside the interface does not need to implement the method5 Public functionEat$food) ;6 }7 //The implemaents keyword is used to indicate that a class

Old growth talk about what's the use of interfacesThe meaning of the interface existence:1. When multiple implementation classes have the same method, using an interface reduces the amount of code2. In the future need to add a method, directly in

Section 2 Interface Definition   Technically, an interface is a set of data structures that contain functional methods. Through this set of data structures, the customerCodeYou can call the functions of component objects. The interface is

Maybe we all understand these, as do not understand I guess the meaning of this interface, he is in order to call the next time to call the implementation of the interface in the class of the content, good around the mouth ah, write an example to

prop and attr interfacesIn the experiment, in the jquery1.7 version, attr ("value") and the Val () interface get the value of the input control, which is consistent and is the current control value.However, the jquery1.11 version has separated the

Maybe we all understand these, as do not understand I guess the meaning of this interface, he is in order to call the next time to call the implementation of the interface in the class of the content, good around the mouth ah, write an example to

Altogether there are four paragraphs, respectively, inquiry, registration, purchase completed, subscribe to the mail, four paragraphs, are placed in a jump interface call, for example, when the purchase succeeds, will pop up this interface, display "

/* Generally, the interface is useless. You can add, delete, modify, and query an implementation class. The processed items can be divided into multiple packages. * Similar to com. user. *; COM. group. *; COM. role. *; ** the general practice is as

Serializable interface is an interface with nothing insideIts source code is public interface serializable{}, that is, nothing.If there is nothing in an interface, then this interface is an identity interface, for example, a student encountered a

Because of the learning of Android, I looked back at Java about inheritance and interface, as well as the transition and downward transformation of the content. If you are enlightened, understand the meaning of the interface, if there is a problem,