class Student:

    classYear=["","freshman","sophomore","junior","senior"]
    IDnumber = 1

    def __init__(self,firstName,lastName,year):
        self.firstName=firstName
        self.lastName=lastName
        self.year=year
        self.hours=0
        self.points=0
        self.ID=Student.IDnumber
        Student.IDnumber=Student.IDnumber+1
        
    def getName(self):
        return self.firstName+" "+self.lastName

    def updateYear(self):
        self.year=self.year+1

    def getYear(self):
        return Student.classYear[self.year]

    def enterGrade(self,hours,grade):
        self.hours = self.hours+hours
        self.points=self.points+hours*grade

    def getGPA(self):
        if self.hours == 0:
            return 0
        else:
            return self.points/self.hours

    def GetID(self):
        return self.ID