Interface Person:

o METHODS:

calculateScore (): calculated as:

for Graduate : Score = nbPapers * gpa

for UnderGraduate: Score = gpa * 3 + 5

getName (): returns the name of the student.

Student class

o METHODS:

Student (name: String, gpa : double): constructor.

Graduate class

o METHODS:

Graduate (name: String, gpa : double, nbPpapers : int): constructor. getNbPapers(): getter for attribute nbPapers.

UnderGraduate class

o METHODS:

UnderGraduate (name: String, gpa : double): constructor.

Institute class

o METHODS:

Institute(name: String): constructor.

addPerson(p: Person): add a person to the institute.

countUnderGraduate (s : double): count the number of UnderGraduate in

the institute with score grater or equal to s.

getGraduate (n : int): this method will return an array containing all the

Graduate with number of papers greater than n.