PLEASE LOOK AT THE RUNS!!!

$2.$ Create a new Java class named Student, according to the UML diagram.

Specifications for the Student Class $($In combination with the UML$)$:

$$ Constructor without arguments $-$ will assign all field values based on your personal

information $($your student number, full name with a score of $100).$

$$ Constructor with $3$ arguments $-$ will assign all field values based on the information

passed in the arguments.

$$ printInfo$()-$ prints out the three field values

with the help of the printf$()$ method. It uses field width and justification as shown in the sample output.

$($Note: in the sample output, the field width of $20,20,3$ and $2$ have been used to present the name, student number, score, and letter grade, respectively, and all the data$-$items used left justification.$)$

$$ The accessor$/$getter method getName$()$ returns the student$$s full name $($the first name followed by a space followed by the last name$),$ while getScore$()$ returns the score of a student.

$$ The mutator$/$setter methods setName$(),$ setStudentName$(),$ setScore$()$ will set the appropriate values $($see the UML diagram$)$ received from the user

$$ The member method called getLetterGrade$()$ returns the letter grade for the corresponding score according to the table given below $($Hint: See Unit $5,$ slide $24-26).$

Student

$-$name: String $-$studentNumber: int $-$score: int

$+$Student$()$

$+$Student$($nm: String, sn: int, sc: int$)+$printInfo$()$: void

$+$getName$()$ : String

$+$getScore$()$: int

$+$setName$($nm: String$)$: void $+$setStudentNumber$($sn: int$)$: void $+$setScore$($sc: int$)$: void $+$getLetterGrade$()$ : String

Score

Letter

Grade

$90$ or greater A$+80-89$ A$-70-79$ B$+60-69$ B$-$

$50-59$ C$+40-49$ C$-30-39$ D

$29$ or less F

$3.$ In the same Java package, create a driver class with the name StudentGradesByYourFirstName $($YourFirstName should be your first name$)$ and do the following:

Page $2$ of $8$

ES$1036$B $-$ Programming Fundamentals for Engineers

Lab Exercise $05$

a$.$ Declare a public static Scanner type field and instantiate it$.$ Note: When in a class, we declare a Scanner type field called input $($we can use any valid name$)$ and instantiate it as public static Scanner input $=$ new Scanner$($System$.$in$)$;this field can be used in any of the static methods of this class. But if we declare a Scanner type reference variable as a local variable then this one can only be used inside the method that we declare it$.$

b$.$ Declare another public static int type field called counter and assign it to zero value. This will keep the count of number of students inside the dataEntry$()$ method.

c$.$ Define a public static void method called dataEntry$()$ that has the following header:

public static void dataEntry$($Student s$)\{\}$

This method will receive a Student type reference in s and do the following inside the

method:

o Incrementtheintegertypefieldcounteryoudeclared;wewilluseittokeep track of the number of Students overall in a run. You can see in the sample output that it says Student $1,2$ etc. Please note that when you increment any static field inside any method, that incremented value remains the same for all the other methods inside the same class.

o Prompttheusertoenterthestudentnumber,andwiththeuseoftheScanner field declared in $($a$)$ get the value from the keyboard and store it in an appropriate variable. Note: the student number must be entered first otherwise, no mark will be awarded. The goal in maintaining this order is to test our understanding of buffer$-$clearing dummy$-$calls associated with the use of the nextLine$()$ method which we need for the next specification.

o Prompttheusertoenterthefullname,andwiththeuseofthesameScannerfield declared in $($a$)$ get the value from the keyboard and store it in an appropriate variable.

o Prompttheusertoenterthescore,andwiththeuseofthesameScannerfield declared in $($a$)$ get the value from the keyboard and store it in an appropriate variable.

o Youcanchooseany$9-$digitstudentnumber,anyfullname$($firstnameandlast name with a space in between$)$ and any score between $0$ and $100.$ Assume that the user will enter valid data only.

o Nowitwillsetalltheabovevaluestoswiththehelpofthesettermethods.

d$.$ Define a public static method called compareGrades$()$ that has the following header: public static int compareGrades$($Student s$1,$ Student s$2)\{\}$ This method will receive two Student type references s$1$ and s$2,$ and do the following:

o It will return $1$ if s$1$s score is greater, else, it will return $-1$ if s$2$s score is greater, otherwise, if both are equal it will return $0.$

e$.$ Copy and paste the myHeader$()$ and myFooter$()$ methods you created in the previous lab.

f$.$ Now define the driver method with the following specifications:

o Inside the main$()$ method, call myHeader$()$ with appropriate arguments. o Declare a Student type reference variable s$1$ and instantiate it to create an

object with the help of the constructor without argument.

o Using the printInfo$()$ method print the information on the screen. Since you

have defined the constructor without parameter with your own information, the printInfo$()$ me