
Explanation of Solution
a.
Given line:
Person p1 = new Student ();
Explanation:
The “Person” and “Student” are two classes. The class “Student” is the derived class and “Person” is the base class...
Explanation of Solution
b.
Given line:
Person p2 = new Undergraduate ();
Explanation:
The “Person” and “Undergraduate” are two classes...
Explanation of Solution
c.
Given line:
Student s1 = new Person ();
Explanation:
The “Person” and “Student” are two classes. The class “Student” is the derived class and “Person” is the base class...
Explanation of Solution
d.
Given line:
Student s2 = new Undergraduate ();
Explanation:
The “Undergraduate” and “Student” are two classes. The class “Undergraduate” is extend from the “Student” class...
Explanation of Solution
e.
Given line:
Undergraduate ug1 = new Person ();
Explanation:
The “Undergraduate” and “Person” are two classes. The class “Undergraduate” is extend from the “Student...
Explanation of Solution
f.
Given line:
Undergraduate ug2 = new Student ();
Explanation:
The “Undergraduate” and “Person” are two classes. The class “Undergraduate” is extend from the “Student...
g.
“Object” class:
All classes in Java inherit from the “Object” class.
- • Directly and indirectly all classes are inherited from the “Object”class.
- • Some of the basic methods of the “Object” class are listed below:
- ○ clone()
- ○ toString()
- ○ equals()
The above methods are automatically created in java when a class is created.
h.
“Object” class:
All classes in Java inherit from the “Object” class.
- • Directly and indirectly all classes are inherited from the “Object”class.
- • Some of the basic methods of the “Object” class are listed below:
- ○ clone()
- ○ toString()
- ○ equals()
The above methods are automatically created in java when a class is created.

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Chapter 8 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
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- using r languagearrow_forwardThe assignment here is to write an app using a database named CIT321 with a collection named students; we will provide a CSV file of the data. You need to use Vue.js to display 2 pages. You should know that this assignment is similar, all too similar in fact, to the cars4sale2 example in the lecture notes for Vue.js 2. You should study that program first. If you figure out cars4sale2, then program 6 will be extremely straightforward. It is not my intent do drop a ton of new material here in the last few days of class. The database contains 51 documents. The first rows of the CSV file look like this: sid last_name 1 Astaire first_name Humphrey CIT major hrs_attempted gpa_points 10 34 2 Bacall Katharine EET 40 128 3 Bergman Bette EET 42 97 4 Bogart Cary CIT 11 33 5 Brando James WEB 59 183 6 Cagney Marlon CIT 13 40 GPA is calculated as gpa_points divided by hrs_attempted. GPA points would have been arrived at by adding 4 points for each credit hour of A, 3 points for each credit hour of…arrow_forwardI need help to solve the following case, thank youarrow_forward
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