Display Activities in Activity Subsystem

/**

• Displays the activities in the activity subsystem.
• This method iterates through the activities in the activity subsystem and prints each activity to the console.
• @throws IllegalStateException if the activity subsystem is not initialized
• @since GPT-3.5-Turbo */ public void displayActivitySubSystem() throws IllegalStateException { for (Activity a: activitySubSystem.activities) System.out.println(a); }