write java program

Question

Instructions:

1. Assume suitable data /information if required. Develop the Java program for the continuous evaluation (CE) mark-sheet portal as mentioned below:

Bifurcation of CE component:

class test sessional innovative assignment total Constrains to clear the CE component

minimum 40% of marks

marks 30 40 30 100 is mandatory to clear CE

component.

Data/attributes for portal:

RollNo, CourseCode, ClassTestMark, SessionalMark, InnovativeAssignmentMark, Semester

The portal has following functionalities:

 Add mark functionality for each component

 Delete and update mark functionality for each component

 Display mark functionality for each component RollNo-wise

 Scan semester from user and generate report for course-wise component-wise failure student list.

 You have to use multi-dimesional array, inheritance and exception handing concepts compulsory. You may use other concepts of Object Oriented Programming if required.

Answer 1

I'm sorry it is still not 100% clear, but a little better...

I really do not want to code anything until the design is

100% CRYSTAL CLEAR!!!

It sounds like you want the class test=30% , sessional=40%, and innovative

assignment=30% as WEIGHTED averages.

So then....

for each student, with a UNIQUE Roll #

there are 2 or more grades in the class test category,

2 or more grades in the sessional category,

2 or more grades in the innovative assignment category

the averages are calculated for EACH of these THREE categories..

THEN:

FINAL SCORE = 0.3 * test average + 0.4 * sessional average + 0.3 * innovative average

What is unclear is the student must score 40% on EACH Category or

40% OVERALL in order to pass...

Besides the failure report, what other reports are required?

The one specified in the 3rd bulleted spec, sorted by Roll #, has column headers:

roll # test sessional innovative score

However, there should be a secondary report BEHIND this one that shows,

for a GIVEN student, the grades for each component, which supports and

backs up, the reported average of each component...

Finally, as these scores and grades are input, there should be another

table that records the date-time stamp of each input and/or edit...

This incurs and brings about yet another report...

Finally, under this approach, it is likely that students will NOT

have the same # of assignments for each category. This results in

a "JAGGED" array which is VERY FROWNED UPON as it is not fair.

Also the DELETION of grades is also a BIG NO-NO

If I am on the right track, then here is my suggested design:

class GradeVector

-----------------

members: double grades;

int # of grades

methods:

GetNumGrades();

InsertAddNewGrade();

IndexerGetIndexAt();

FindLinearSearch();

IndexerSetIndexAt(); <-- needs to be audited

//RemoveDeleteGrade(); <-- maybe, not recommended

GetAverage();

class Student

-------------

members: String name;

long rollNum;

char DOB[3];

methods:

getters and setters

class StudentGrades

-------------------------------

members:

Student student;

GradeVector Grades[3]; /* satifies the nested array requirement;

Grades[0] is the grades vector for the tests component

Grades[1] is the grades vector for the sessional component

Grades[2] is the grades vector for the innovative assignment component */

methods:

IndexerGetGradesComponentAt(); //returns the Grades vector for the specified component

CalculateWeightedAverage();

Perhaps:

class Course

---------------

members: long courseID

StudentGrades A[];

indexerGetIndexAt()

Finally for the satisfaction of the inheritance requirement,

you can create a custom exception to be thrown if a negative

score is input..