Java Inheritance, Composition and Aggregation

von
Coursera Project Network
In diesem angeleitetes Projekt werden Sie:

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
IntermediateMittel
CloudKein Download erforderlich
VideoVideo auf geteiltem Bildschirm
Comment DotsEnglisch
LaptopNur Desktop

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.

Kompetenzen, die Sie erwerben werden

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

Schritt für Schritt lernen

In einem Video, das auf einer Hälfte Ihres Arbeitsbereichs abgespielt wird, führt Sie Ihr Dozent durch diese Schritte:

  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.

Ablauf angeleiteter Projekte

Ihr Arbeitsbereich ist ein Cloud-Desktop direkt in Ihrem Browser, kein Download erforderlich

Ihr Dozent leitet Sie in einem Video mit geteiltem Bildschirm Schritt für Schritt an.

Häufig gestellte Fragen

Häufig gestellte Fragen

Haben Sie weitere Fragen? Besuchen Sie das Hilfe-Center für Teiln..