Adding a Constructor

Classic programmed-learning exercises, refreshed for modern Java and presented in the current MrStyner.com portfolio style.

Modern Java noteThis archive has been refreshed for Java 25 LTS. Core language concepts remain useful, while outdated setup instructions and browser-era Java are labeled or replaced. Java 26 is the current feature release; Java 25 is used here as the stable teaching baseline.

Answer:

The new class definition is (in part) below.

Adding a Constructor

The MusicVideo class is a subclass of Video. A skeleton of the definition is below. The Movie class is not shown, but is also a subclass of Video. Remember that a class can have several subclasses.

class Video
{
  String  title;    // name of the item
  int     length;   // number of minutes
  boolean avail;    // is the video in the store?

  // constructor
  public Video( String ttl, int lngth )
  {
    title = ttl; length = lngth; avail = true; 
  }

  public void show()
  {
    System.out.println( title + ", " + length + " min. available:" + avail );
  }
  
}

class MusicVideo extends Video
{
  String artist;
  String category;

  // The constructor will go here

  // The show() method will go here

}

QUESTION 18:

What instance variables are part of the class MusicVideo?