jGuru: The MusicStore Class

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For this exercise you implement the first version of a user-defined data type MusicStore. This class will be used in subsequent exercises as well.

Prerequisites

• Testing the Java Environment with SimpleProgram

Skeleton Code

• MusicStore.java
• TestMusicStore.java

Tasks

1. Design and implement MusicStore as a public class with one public method, displayHoursOfOperation. This method displays the daily hours of operation to the standard output device (often called stdout or standard out), which is either a command window or an IDE window, depending on your Java environment.
   
   Check the expected output to determine exactly what to print out.
   
   
2. Design and implement TestMusicStore as a public class with one public static void method main. main performs the following tasks:
   
   
   • Creates an instance of MusicStore
   • Invokes the displayHoursOfOperation method to display the daily hours of operation to standard output
   • Terminates the program with exit
   
   
3. Compile the source code for MusicStore and TestMusicStore.
   
   
4. Execute TestMusicStore.

Where help exists, the task numbers above are linked to the step-by-step help page.

Solution Source

• MusicStore.java
• TestMusicStore.java

Demonstration

The output should be similar to the following, either on the command line or in an IDE window:

Store Hours: Daily:  9:00 AM - 21:00 PM

Of course, as the store proprietor, you choose the hours of operation.

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