Solution Review: Implement the Complete Student Class

class Student:
    __name = None
    __rollNumber = None
    
    def setName(self, name):
        self.__name = name
    def getName(self):
        return self.__name
    def setRollNumber(self, rollNumber):
        self.__rollNumber = rollNumber
    def getRollNumber(self):
        return self.__rollNumber
demo1 = Student()
demo1.setName("Alex")
print("Name:", demo1.getName())
demo1.setRollNumber(3789)
print("Roll Number:", demo1.getRollNumber())