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2.4. Problem Create a class called Exam that a teacher might use to represent an exam for a course taught in the university. An Exam should include different information as instance variables - an exam date (day, month, and year), an exam time (hour and minutes), and an exam max marks. It should also include 2 constants which are the exam type and exam order. The exam type value may be one of the constant static fields ("Lab Exam", "Midterm Exam", "Final Exam") or any other value. The exam order (1, 2, 3, etc.) is set for lab exams and midterms by using separate static counters, for other exam types is set to 0. Provide 5 overloaded constructors, where: • the first constructor takes the exam type only, • the second constructor takes, in addition to what the first takes, the max marks, • the third constructor takes, in addition to what the second takes, the date, • the forth constructor takes, in addition to what the third takes, the time, • and the fifth constructor takes an object of type Exam. For simplicity's sake, the following variable must be checked against their ranges: day value must be between 1 and 31, month value must between 1 and 12, year value must be greater than 0. • lab max marks value must be between 5 and 10, otherwise is set to 10 • midterm max marks value must be between 15 and 20, otherwise is set to 20 • final max marks value must be between 30 and 40, otherwise is set to 40 • • Provide a set and a get method for each (non-constant) instance variable. In addition, define a method called setDate that sets at once the day, month, and year values. Similarly, define a method called setTime that sets at once the hour and minutes values.

2.4. Problem Create a class called Exam that a teacher might use to represent an exam for a course taught in the university. An Exam should include different information as instance variables - an exam date (day, month, and year), an exam time (hour and minutes), and an exam max marks. It should also include 2 constants which are the exam type and exam order. The exam type value may be one of the constant static fields ("Lab Exam", "Midterm Exam", "Final Exam") or any other value. The exam order (1, 2, 3, etc.) is set for lab exams and midterms by using separate static counters, for other exam types is set to 0. Provide 5 overloaded constructors, where: • the first constructor takes the exam type only, • the second constructor takes, in addition to what the first takes, the max marks, • the third constructor takes, in addition to what the second takes, the date, • the forth constructor takes, in addition to what the third takes, the time, • and the fifth constructor takes an object of type Exam. For simplicity's sake, the following variable must be checked against their ranges: day value must be between 1 and 31, month value must between 1 and 12, year value must be greater than 0. • lab max marks value must be between 5 and 10, otherwise is set to 10 • midterm max marks value must be between 15 and 20, otherwise is set to 20 • final max marks value must be between 30 and 40, otherwise is set to 40 • • Provide a set and a get method for each (non-constant) instance variable. In addition, define a method called setDate that sets at once the day, month, and year values. Similarly, define a method called setTime that sets at once the hour and minutes values.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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2.4. Problem Create a class called Exam that a teacher might use to represent an exam for a course taught in the university. An Exam should include different information as instance variables - an exam date (day, month, and year), an exam time (hour and minutes), and an exam max marks. It should also include 2 constants which are the exam type and exam order. The exam type value may be one of the constant static fields ("Lab Exam", "Midterm Exam", "Final Exam") or any other value. The exam order (1, 2, 3, etc.) is set for lab exams and midterms by using separate static counters, for other exam types is set to 0. Provide 5 overloaded constructors, where: • the first constructor takes the exam type only, • the second constructor takes, in addition to what the first takes, the max marks, • the third constructor takes, in addition to what the second takes, the date, • the forth constructor takes, in addition to what the third takes, the time, • and the fifth constructor takes an object of type Exam. For simplicity's sake, the following variable must be checked against their ranges: day value must be between 1 and 31, month value must between 1 and 12, • • • year value must be greater than 0. • lab max marks value must be between 5 and 10, otherwise is set to 10 • midterm max marks value must be between 15 and 20, otherwise is set to 20 • final max marks value must be between 30 and 40, otherwise is set to 40 Provide a set and a get method for each (non-constant) instance variable. In addition, define a method called setDate that sets at once the day, month, and year values. Similarly, define a method called setTime that sets at once the hour and minutes values.
Transcribed Image Text:2.4. Problem Create a class called Exam that a teacher might use to represent an exam for a course taught in the university. An Exam should include different information as instance variables - an exam date (day, month, and year), an exam time (hour and minutes), and an exam max marks. It should also include 2 constants which are the exam type and exam order. The exam type value may be one of the constant static fields ("Lab Exam", "Midterm Exam", "Final Exam") or any other value. The exam order (1, 2, 3, etc.) is set for lab exams and midterms by using separate static counters, for other exam types is set to 0. Provide 5 overloaded constructors, where: • the first constructor takes the exam type only, • the second constructor takes, in addition to what the first takes, the max marks, • the third constructor takes, in addition to what the second takes, the date, • the forth constructor takes, in addition to what the third takes, the time, • and the fifth constructor takes an object of type Exam. For simplicity's sake, the following variable must be checked against their ranges: day value must be between 1 and 31, month value must between 1 and 12, • • • year value must be greater than 0. • lab max marks value must be between 5 and 10, otherwise is set to 10 • midterm max marks value must be between 15 and 20, otherwise is set to 20 • final max marks value must be between 30 and 40, otherwise is set to 40 Provide a set and a get method for each (non-constant) instance variable. In addition, define a method called setDate that sets at once the day, month, and year values. Similarly, define a method called setTime that sets at once the hour and minutes values.
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