Polymorphism Other legal polymorphic references:
{"Image DocumentName": "Polymorphism Other legal polymorphic references:", "Image ImageDescription": "GradedActivity exam1 = new FinalExam(50, 7); GradedActivity exam2 = new PassFailActivity(70); GradedActivity exam3 = new PassFailExam(100, 10, 70); The GradedActivity class has three methods: setScore, getScore, and getGrade. A GradedActivity variable can be used to call only those three methods. GradedActivity exam = new PassFailExam(100, 10, 70); System.out.println(exam.getScore()); // This works. System.out.println(exam.getGrade()); // This works. System.out.println(exam.getPointsEach()); // ERROR!", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}