Java Inheritance, Composition and Aggregation

提供:
Coursera Project Network
このガイド付きプロジェクトでは、次のことを行います。

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.

Clock2 hours
Intermediate中級
Cloudダウンロード不要
Video分割画面ビデオ
Comment Dots英語
Laptopデスクトップのみ

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.

あなたが開発するスキル

Java AggregationJava CompositionJava ProgrammingObject-Oriented Programming (OOP)Java Inheritance

ステップバイステップで学習します

ワークエリアを使用した分割画面で再生するビデオでは、講師がこれらの手順を説明します。

  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.

ガイド付きプロジェクトの仕組み

ワークスペースは、ブラウザに完全にロードされたクラウドデスクトップですので、ダウンロードは不要です

分割画面のビデオで、講師が手順ごとにガイドします

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