Exercise 3: Calculate the Student's Total Marks

Problem Statement

A constructor function called Student is given with the following parameters:

• marks1
• marks2

Important Note: Both marks1 and marks2 should be assigned to protected variables, _marks1 and _marks2, during initialization. The lesson on data encapsulation explains how to do so.

Next, you have to define the following methods such that they can be shared by all object instances created:

• getMarks(markNumber): a method which should return _marks1 if markNumber equals 1 and _marks2 if markNumber equals 2.

• calcTotal(): the method should return the sum of _marks1 and _marks2.