Table of Contents
方法重载和重写的区别,方法重载重写区别
Method overriding
方法重载和重写的区别,方法重载重写区别
答一: 根本区别:重写(重构)很直观啊,子类覆盖了父类的同名同参同返回值的方法,用子类调用的只会是重写的方法
重载,同名而已。 答二: 1、重载:
方法名相同,参数列表不同
2、重写:
也叫覆盖,指在子类中定义一个与父类中方法同名同参数列表的方法。因为子类会继承父类的方法,而重写就是将从父类继承过来的方法重新定义一次,重新填写方法中的代码。
答三:
重写是子类的方法覆盖父类的方法,要求方法名和参数都相同<br /><br />重载是在同一个类中的两个或两个以上的方法,拥有相同的方法名,但是参数却不相同,方法体也不相同,最常见的重载的例子就是类的构造函数,可以参考API帮助文档看看类的构造方法<br /><br /><br /><br />
Copy after login
2.重写的方法名,参数数目相同,参数类型兼容,重载的方法名相同,参数列表不同。
3.重写的方法修饰符大于等于父类的方法,重载和修饰符无关。
4.重写不可以抛出父类没有抛出的一般异常,可以抛出运行时异常
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

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago
By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago
By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago
By 尊渡假赌尊渡假赌尊渡假赌
How Long Does It Take To Beat Split Fiction?
3 weeks ago
By DDD
R.E.P.O. Save File Location: Where Is It & How to Protect It?
3 weeks ago
By DDD

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)
