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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?
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.
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).