EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
12th Edition
ISBN: 8220101450739
Author: Morris
Publisher: YUZU
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Expert Solution & Answer
Chapter 4, Problem 8P
Explanation of Solution
Entity Relational (ER) Diagram:
The following figure illustrates the ER Diagram for given business rules using Crow’s Foot notation:
Explanation:
The above ERD contains several entities such as “PATIENT”, “APPOINTMENT”, “DOCTOR”, “PATIENT_PAYMENT”, “VISITING”, “BILL”, “VISIT_DETAIL”, “INSURANCE” and “INSURANCE_PAYMENT”. Each entity has its own attributes.
- A doctor keeps several patients; similarly, a patient may request many doctors. Hence the relationship between the entities “DOCTOR” and “PATIENT” is M: N...
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1. Create an abstract Animal class. Then, create a Cat class. Please implement all the methods and inheritance
relations in the UML correctly:
Animal
name: String
# Animal (name: String)
+ getName(): String
+ setName(name: String): void
+ toString(): String
+ makeSound(): void
Cat
breed : String
age: int
+ Cat(name: String, breed: String, age: int)
+ getBreed(): String
+ getAge (): int
+ toString(): String
+ makeSound(): void
2. Create a public CatTest class with a main method. In the main method, create one Cat object and print the
object using System.out.println(). Then, test makeSound() method.
Your printing result must follow the example output:
name: Coco, breed: Domestic short-haired, age: 3
Meow Meow
automata theory can please wright the exact language it know for example say it knows strings start 0 and end with 1 this is as example also as regular expression
Chapter 4 Solutions
EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
Ch. 4 - Prob. 1RQCh. 4 - What is a strong (or identifying) relationship,...Ch. 4 - Prob. 4RQCh. 4 - Suppose you are working within the framework of...Ch. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Discuss the difference between a composite key and...Ch. 4 - What two courses of action are available to a...Ch. 4 - Prob. 11RQCh. 4 - Discuss two ways in which the 1:M relationship...
Ch. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Briefly, but precisely, explain the difference...Ch. 4 - What are multivalued attributes, and how can they...Ch. 4 - Prob. 17RQCh. 4 - Prob. 18RQCh. 4 - What two attributes must be contained in the...Ch. 4 - Describe precisely the composition of the...Ch. 4 - Prob. 21RQCh. 4 - Prob. 1PCh. 4 - Create a complete ERD in Crows Foot notation that...Ch. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10PCh. 4 - Prob. 11C
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