Java Inheritance, Composition and Aggregation

提供方
在此指導項目中,您將:

Inherit from a Java Super Class called Car to create a Used Car.

Create a Parent Dealership Java class with a list of Cars and Accounts.

Combine the Used Cars, Accounts and Cars into one Java application to demonstrate Class Re-use.

2 hours
中級
無需下載
分屏視頻
英語(English)
僅限桌面

In this project you will create a Java application that inherits from a Car class in Java and use aggregation and composition in a class that uses one to many Car objects. Code re-use allows the developer to use tried and tested code, which results in more reliable code and saves in development time as well. In Object-Oriented Programming in a language such as Java, code re-use can be accomplished in two distinctive ways. One way is to inherit from an existing class by extending its existing functionality. A Car class for example can be extended by a Used Car class by adding a parameter to indicate the number of miles on it. Another common way to re-use code is through aggregation and composition. In aggregation, the class is made up of other existing classes that may exist independent of the parent class. Note: This course works best for learners who are based in the North America region. We’re currently working on providing the same experience in other regions.

您要培養的技能

  • Java Aggregation

  • Java Composition

  • Java Programming

  • Object-Oriented Programming (OOP)

  • Java Inheritance

分步進行學習

在與您的工作區一起在分屏中播放的視頻中,您的授課教師將指導您完成每個步驟:

  1. Inherit from a Java Super Class called Car to create a Used Car.

  2. Define instance methods in the Java Used Car Subclass.

  3. Create a Parent Dealership Java class with a list of Cars and Accounts.

  4. Add a Motor Vehicles Java class that contains a list of Cars to demonstrate Aggregation.

  5. Combine the Used Cars, Accounts and Cars into one Java application to demonstrate Java Class Re-use.

指導項目工作原理

您的工作空間就是瀏覽器中的雲桌面,無需下載

在分屏視頻中,您的授課教師會為您提供分步指導

常見問題

購買指導項目後,您將獲得完成指導項目所需的一切,包括通過 Web 瀏覽器訪問云桌面工作空間,工作空間中包含您需要了解的文件和軟件,以及特定領域的專家提供的分步視頻說明。

由於您的工作空間包含適合筆記本電腦或台式計算機使用的雲桌面,因此指導項目不在移動設備上提供。

指導項目授課教師是特定領域的專家,他們在項目的技能、工具或領域方面經驗豐富,並且熱衷於分享自己的知識以影響全球數百萬的學生。

您可以從指導項目中下載並保留您創建的任何文件。為此,您可以在訪問云桌面時使用‘文件瀏覽器’功能。

指導項目不符合退款條件。 請查看我們完整的退款政策

指導項目不提供助學金。

指導項目不支持旁聽。

您可在頁面頂部點按此指導項目的經驗級別,查看任何知識先決條件。對於指導項目的每個級別,您的授課教師會逐步為您提供指導。

是,您可以在瀏覽器的雲桌面中獲得完成指導項目所需的一切。

您可以直接在瀏覽器中於分屏環境下完成任務,以此從做中學。在屏幕的左側,您將在工作空間中完成任務。在屏幕的右側,您將看到有授課教師逐步指導您完成項目。