Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 9, Problem 6P
a)
Program Plan Intro
Maintenance:
- When the system becomes operational the requirements of the user gets changed.
- Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.
- The changes that are made requires maintenance activities and that are categorized in three following ways they are:
- Corrective maintenance:
- It is the maintenance that is made in response with system errors.
- Adaptive maintenance:
- It is the maintenance that is made when there is a change in the business environment.
- Perfective maintenance:
- It is the maintenance activity that is made when the system needs to be enhanced.
- Corrective maintenance:
b)
Program Plan Intro
Maintenance:
- When the system becomes operational the requirements of the user gets changed.
- Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.
- The changes that are made requires maintenance activities and that are categorized in three following ways they are:
- Corrective maintenance:
- It is the maintenance that is made in response with system errors.
- Adaptive maintenance:
- It is the maintenance that is made when there is a change in the business environment.
- Perfective maintenance:
- It is the maintenance activity that is made when the system needs to be enhanced.
- Corrective maintenance:
c)
Program Plan Intro
Maintenance:
- When the system becomes operational the requirements of the user gets changed.
- Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.
- The changes that are made requires maintenance activities and that are categorized in three following ways they are:
- Corrective maintenance:
- It is the maintenance that is made in response with system errors.
- Adaptive maintenance:
- It is the maintenance that is made when there is a change in the business environment.
- Perfective maintenance:
- It is the maintenance activity that is made when the system needs to be enhanced.
- Corrective maintenance:
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Task 2: Comparable Interface and Record (10 Points)
1. You are tasked with creating a Java record of Dog (UML is shown below). The dog record
should include the dog's name, breed, age, and weight. You are required to implement the
Comparable interface for the Dog record so that you can sort the records based on the dogs'
ages. Create a Java record named Dog.java.
name: String
breed: String
age: int
weight: double
+ toString(): String
>
Dog
+ compareTo(otherDog: Dog): int
>
Comparable
2. In the Dog record, establish a main method and proceed to generate an array named
dogList containing three Dog objects, each with the following attributes:
Dog1: name: "Buddy", breed: "Labrador Retriever", age: 5, weight: 25.5
Dog2: name: "Max", breed: "Golden Retriever", age: 3, weight: 30
Dog3: name: "Charlie", breed: "German Shepherd", age: 2, weight: 22
3. Print the dogs in dogList before sorting the dogList by age. (Please check the example
output for the format).
•
4. Sort the dogList using…
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Database Systems: Design, Implementation, & Management
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