■Write Student and StudentTest classes.Write Date and DateTest classes.Private states2 constructorsPublic behaviors><>Student(default package)aid: intName: StringIName: StringStudent(int)Student(int, String, Strit g)getld() intsetid (int) voidgetfName(): StringsetfName(String):voidgetlName(): StringsetlName(String):voidDisplayMessage():StringPrivate states4 constructors.Public behaviors<>Date(default package)> day: int> month: inta year: intDate(Date)Date(int)Date(int,int)Date(int,int,int)getDay() intsetDay(int):voidget Month() intsetMonth(int) voidget Year() intset Year(int) voidtoString(): Stringequals(Date) boolean

Student Class:The Student class represents a student entity with the following attributes: id, fName…

Answered: ■ Write Student and StudentTest…

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

See similar textbooks

Related questions

Concept explainers

Question

■
Write Student and StudentTest classes.
Write Date and DateTest classes.
Private states
2 constructors
Public behaviors
>
<<Java Class>>
Student
(default package)
aid: int
Name: String
IName: String
Student(int)
Student(int, String, Strit g)
getld() int
setid (int) void
getfName(): String
setfName(String):void
getlName(): String
setlName(String):void
DisplayMessage():String
Private states
4 constructors.
Public behaviors
<<Java Class>>
Date
(default package)
> day: int
> month: int
a year: int
Date(Date)
Date(int)
Date(int,int)
Date(int,int,int)
getDay() int
setDay(int):void
get Month() int
setMonth(int) void
get Year() int
set Year(int) void
toString(): String
equals(Date) boolean

Expert Solution

Step 1: Student and StudentTest class Algorithm

Student Class:

The Student class represents a student entity with the following attributes: id, fName (first name), and lName (last name).
It provides two constructors:
public Student(int id): Initializes the id of the student and leaves fName and lName as null.
public Student(String fName, String lName): Initializes the fName and lName of the student and leaves id as 0.
Getter and setter methods are provided for each attribute (getId, setId, getfName, setfName, getlName, setlName).
The DisplayMessage method returns a formatted string containing the student's information.

StudentTest Class:

In the main method of the StudentTest class:
An instance of Student named student1 is created using the constructor that takes an id. The first name and last name are then set using setter methods.
Another instance of Student named student2 is created using the constructor that takes first and last names.
Information about both students is displayed using System.out.println statements, including ID, first name, last name, and the result of the DisplayMessage method.

Step by step

Solved in 8 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions