University of London Attributes and Operations of the Superhero Superman Exercises

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EX 4.1 For each of the following pairs, which represents a class and which represents an object of that class?
Superhero, Superman
Justin, Person
Rover, Pet
Magazine, Time
Christmas, Holiday

EX 4.2 List some attributes and operations that might be defined for a class called PictureFrame that represents a picture frame.

EX 4.4 List some attributes and operations that might be defined for a class called Course that represents a college course (not a particular offering of a course, just the course in general).

EX 4.5 Write a method called lyrics that prints the lyrics of a song when invoked. The method should accept no parameters and return no value.
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EX 4.7 Write a method called random100 that returns a random integer in the range of 1 to 100 (inclusive).

EX 4.9 Write a method called randomColor that creates and returns a Color object that represents a random color. Recall that a Color object can be defined by three integer values between 0 and 255, representing the contributions of red, green, and blue (its RGB value).