Write an abstract superclass encapsulating a student. Thisabstract superclass named Student has two data fields:student’s ID and annual tuition. This abstract class has twononabstract subclasses: one encapsulating undergraduatestudents named Undergraduateclass, and the otherencapsulating graduate students named Graduate. Thisabstract superclass also has a getTuition() method and asetTuition(int tuition) method. The setTuition(int tuition) is onlyan abstract method.In JavaThe Undergraduate class has two additional data fields: nameand GPA. This class has also its own setTuition(int tuition)method .The Graduate class has one additional attribute:major. It also has its own setTuition(int tuition) method.You also need to include a class to test these two classes.Create an object from each subclass and call a method if anysubclass has it.Each class should have its own constructor and String toString()method. ### Object-Oriented Programming: Student Superclass Example**Objective:** Create an abstract superclass that models a student, with specific subclasses for undergraduate and graduate students.**Instructions:**1. **Abstract Superclass: Student** - Name: `Student` - Data Fields: - `student's ID` - `annual tuition` - Abstract Methods: - `getTuition()` - `setTuition(int tuition)`2. **Subclasses:** - **Undergraduate Class** - Additional Data Fields: - `name` - `GPA` - Methods: - Implements its own `setTuition(int tuition)` - **Graduate Class** - Additional Attribute: - `major` - Methods: - Implements its own `setTuition(int tuition)`3. **Testing Class:** - Create objects from each subclass. - Call methods available in each subclass. 4. **Additional Requirements:** - Each class must have: - Its own constructor - A `String toString()` methodThis setup encourages the application of inheritance and polymorphism principles by allowing specialized implementations of common features.

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Answered: Write an abstract superclass…

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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Write an abstract superclass encapsulating a student. This
abstract superclass named Student has two data fields:
student’s ID and annual tuition. This abstract class has two
nonabstract subclasses: one encapsulating undergraduate
students named Undergraduateclass, and the other
encapsulating graduate students named Graduate. This
abstract superclass also has a getTuition() method and a
setTuition(int tuition) method. The setTuition(int tuition) is only
an abstract method.

In Java

The Undergraduate class has two additional data fields: name
and GPA. This class has also its own setTuition(int tuition)
method .The Graduate class has one additional attribute:
major. It also has its own setTuition(int tuition) method.

You also need to include a class to test these two classes.
Create an object from each subclass and call a method if any
subclass has it.

Each class should have its own constructor and String toString()
method.

### Object-Oriented Programming: Student Superclass Example

**Objective:**
Create an abstract superclass that models a student, with specific subclasses for undergraduate and graduate students.

**Instructions:**

1. **Abstract Superclass: Student**
- Name: `Student`
- Data Fields:
- `student's ID`
- `annual tuition`
- Abstract Methods:
- `getTuition()`
- `setTuition(int tuition)`

2. **Subclasses:**
- **Undergraduate Class**
- Additional Data Fields:
- `name`
- `GPA`
- Methods:
- Implements its own `setTuition(int tuition)`

- **Graduate Class**
- Additional Attribute:
- `major`
- Methods:
- Implements its own `setTuition(int tuition)`

3. **Testing Class:**
- Create objects from each subclass.
- Call methods available in each subclass.

4. **Additional Requirements:**
- Each class must have:
- Its own constructor
- A `String toString()` method

This setup encourages the application of inheritance and polymorphism principles by allowing specialized implementations of common features.

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