how to use inheritance

Let's look at an example before we explain it.Husband.java Public class Husband { private String name; Private String sex; privateintage; Private Wife Wife; // getter and setter methods for omitting attributes }Wife.java Public

I. Internal Design and Implementation of the class ? Defining a reasonable interface for a class plays a key role in creating high-quality programs. However, the design and implementation of the class are equally important. This section mainly

Inheritance is a double-edged sword.Through the previous sections, we should have a better understanding of inheritance, but before we say that inheritance is actually a double-edged sword, why do you say so? On the one hand, inheritance is very

  HTML/CSS (7)-the cornerstone of the Network01. A frequently asked question: how to make the Layer Cover the drop-down list box? (Yang Zhengyu) 02. Technical Investigation on the question of "how to differentiate whether input is a button or a text

In "Think in Java" There is a sentence: Reuse code is one of Java's many compelling features. But to be a revolutionary language, it's not enough to just copy the code and change it, and it has to be able to do more. The most noticeable in this

One, object-oriented characteristics Three basic features: encapsulation, inheritance, and polymorphism. 1, packagingThe core idea of object-oriented programming this is to encapsulate the data with the operations of the data. By abstraction, that

In "Think in Java" There is a sentence: Reuse code is one of Java's many compelling features. But to be a revolutionary language, it's not enough to just copy the code and change it, and it has to be able to do more. The most noticeable in this

Combination and inheritance are two methods of code reuse in object-oriented systems. A combination is used to create objects of the original class in the new class and reuse the functions of the existing class. Inheritance is one of the main

1. Introduce STL and explain in detail how STL implements vector.Answer:STL (standard template library. It consists of container algorithm iterator.STL has the following advantages:It is easy to implement a series of algorithms such as searching

Easy introduction to UML (3)-SRP cook well, let others program, uml-srpA cook can make a good dish. Maybe he graduated from New Oriental or the secret recipe of his family. It is simple, happy, and efficient for you to let him cook a table of food.

Original link: http://www.cnblogs.com/shuhari/archive/2009/06/04/inherit_thinking.htmlIs it good to inherit?The classical oo theory says: Inheritance is one of the three cornerstones of object-oriented.Modern OO theory says that the combination is

Some have learned that inheritance, that he is one of the object-oriented features, in all can be used to inherit the place of inheritance, regardless of whether it should not be used, undoubtedly, this is wrong. So, how do you use inheritance?

"Go" Java Improve (ii)-----Understanding the inheritance of three major features of JavaOriginal address: http://www.cnblogs.com/chenssy/p/3354884.htmlIn "Think in Java" There is a sentence: Reuse code is one of Java's many compelling features. But

InheritedFrom here we can see that Wife, husband two classes in addition to their respective husband, Wife the rest of the same, as a want to maximize the reuse of code we can not tolerate such duplication of code, then how can we implement these

Notes Four. Classes and Interfaces 12th: Minimize the accessibility of classes and members In order to better realize the information hiding, reduce the coupling degree of each module, it is necessary to reduce the access ability of class and

Java Basic Note –annotation annotations and using custom annotations This article was published by arthinking 5 years ago |Java Basics |  number of Reviews 7 | Be onlookers 25,969 views+ 1, the work principle of annotation: 2, @Override Note: 3,

Part II: Creating High-quality codeThe fifth chapter: Design in Software construction"In large projects, the design may be detailed to make coding work almost mechanized""In a small project, a design might refer to an interface that uses pseudo-code

Java programming ideology note (3) -- reuse of classes and reuse of programming ideology I. Introduction to reuse Functions Code reuse is not enough to copy and change the code, but also to use classes without damaging the existing program code.

Oriented Interface Programming(Classic. Reprinted) Eliminate inheritance and orientation in a rushInterface ProgrammingThese two major problems are not an easy task, especially considering the level of understanding. Frankly speaking, this

Getting started with iOS development☞OC language · note 6, iosocThree main features of object-oriented: encapsulation, inheritance, polymorphism 1. Encapsulation 1.1 Basic Concepts Combine scattered things. In a broad sense, encapsulation refers