Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic program…
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
Question

Create one class check in pets

per.Java class file

must include

all attributes with appropriate data structures

at least one constructor method must initialize petType, petName, perAge, and daysStay attributes 

accessors and mutators for all attributes

not required to connect to other classes or run as program practice creating class from uml diagram

The image shows a UML class diagram that illustrates the relationships between a general `Pet` class and its subclasses `Dog` and `Cat`. ### Class: Pet - **Attributes and Methods**: - `+ Pet()`: Constructor for the Pet class. - `+ getPetType()`: Method to get the pet's type. - `+ setPetType()`: Method to set the pet's type. - `+ getPetName()`: Method to get the pet's name. - `+ setPetName()`: Method to set the pet's name. - `+ getPetAge()`: Method to get the pet's age. - `+ setPetAge()`: Method to set the pet's age. - `+ getDogSpaces()`: Method to get the number of dog spaces. - `+ setDogSpaces()`: Method to set the number of dog spaces. - `+ getCatSpaces()`: Method to get the number of cat spaces. - `+ setCatSpaces()`: Method to set the number of cat spaces. - `+ getDaysStay()`: Method to get the number of days the pet will stay. - `+ setDaysStay()`: Method to set the number of days the pet will stay. - `+ getAmountDue()`: Method to get the amount due for the stay. - `+ setAmountDue()`: Method to set the amount due for the stay. ### Class: Dog - **Attributes**: - `- dogSpaceNumber`: The space number for the dog. - `- dogWeight`: The weight of the dog. - `- grooming`: Indicates if grooming is required. - **Methods**: - `+ Dog()`: Constructor for the Dog class. - `+ getGrooming()`: Method to get grooming status. - `+ setGrooming()`: Method to set grooming status. - `+ getDogWeight()`: Method to get the dog's weight. - `+ setDogWeight()`: Method to set the dog's weight. - `+ getDogSpaceNumber()`: Method to get the dog's space number. - `+ setDogSpaceNumber()`: Method to set the dog's space number. ### Class: Cat - **Attributes**: - `- catSpaceNumber`: The space number for the cat.
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Transcribed Image Text:The image shows a UML class diagram that illustrates the relationships between a general `Pet` class and its subclasses `Dog` and `Cat`. ### Class: Pet - **Attributes and Methods**: - `+ Pet()`: Constructor for the Pet class. - `+ getPetType()`: Method to get the pet's type. - `+ setPetType()`: Method to set the pet's type. - `+ getPetName()`: Method to get the pet's name. - `+ setPetName()`: Method to set the pet's name. - `+ getPetAge()`: Method to get the pet's age. - `+ setPetAge()`: Method to set the pet's age. - `+ getDogSpaces()`: Method to get the number of dog spaces. - `+ setDogSpaces()`: Method to set the number of dog spaces. - `+ getCatSpaces()`: Method to get the number of cat spaces. - `+ setCatSpaces()`: Method to set the number of cat spaces. - `+ getDaysStay()`: Method to get the number of days the pet will stay. - `+ setDaysStay()`: Method to set the number of days the pet will stay. - `+ getAmountDue()`: Method to get the amount due for the stay. - `+ setAmountDue()`: Method to set the amount due for the stay. ### Class: Dog - **Attributes**: - `- dogSpaceNumber`: The space number for the dog. - `- dogWeight`: The weight of the dog. - `- grooming`: Indicates if grooming is required. - **Methods**: - `+ Dog()`: Constructor for the Dog class. - `+ getGrooming()`: Method to get grooming status. - `+ setGrooming()`: Method to set grooming status. - `+ getDogWeight()`: Method to get the dog's weight. - `+ setDogWeight()`: Method to set the dog's weight. - `+ getDogSpaceNumber()`: Method to get the dog's space number. - `+ setDogSpaceNumber()`: Method to set the dog's space number. ### Class: Cat - **Attributes**: - `- catSpaceNumber`: The space number for the cat.
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