Home > Java > javaTutorial > Problems of multiple inheritance

Problems of multiple inheritance

Linda Hamilton
Release: 2024-10-09 06:07:02
Original
1040 people have browsed it

Problemas da herança múltipla

  • Java does not support multiple inheritance of classes, and standard methods do not circumvent this restriction, as classes can maintain state (with instance variables), but interfaces cannot.

  • Default methods offer a limited form of multiple inheritance of behavior, allowing a class to inherit behaviors from multiple interfaces with default methods.

  • Conflicts can occur when two interfaces implemented by a class have the same default method, as in the case of two interfaces, Alpha and Beta, both with the reset() method.

  • Rules for resolving conflicts:

  • 1 The class implementation takes priority over the default interface implementation.

  • 2 If two interfaces have the same default method and the class does not override the method, an error will occur.

  • 3 If one interface inherits another and both define the same default method, the inherited interface version takes precedence.

  • To explicitly reference a standard implementation of an interface, you can use the syntax: NameInterface.super.NameMethod().

The above is the detailed content of Problems of multiple inheritance. For more information, please follow other related articles on the PHP Chinese website!

source:dev.to
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template