Write a definition for the operator<<() function for the Date class described below:
The Date class contains information about a calendar date. A date is represented by three integer values representing the month, day, and year of the date. Valid values for the month range from 1 to 12 inclusive. Valid values for the day range from 1 to 31 inclusive.
The Date class should have three integer data members representing the month, day, and year for the date. None of the data members should be directly accessible by code outside the Date class.
The class has one constructor. The constructor takes three integer parameters to initialize the three data members of the class. The parameters should have the default values of 1 for the month and day and 1900 for the year. The constructor should have two versions:
1. One constructor takes no parameters and sets the month and day to 1 and the year to 1900.
2. The other constructor takes three integer parameters to initialize the three data members. This constructor should call the set member functions described below to set the three data members to the parameters passed in.
There should be three member functions to get the value of each of the data members. Each of these takes no parameters and returns an integer.
There should be three member functions to set the value of each of the data members. Each of these takes an integer parameter and returns nothing. The set functions should validate the input values and set the data member to 1 if the new value in the parameter is invalid. Otherwise, set the data member to the parameter passed in.
The equality operator == should be overloaded for the class to allow two Date objects to be compared. The operator function should return a Boolean value. Two dates are equal if all of their data members are equal.
The stream insertion operator should be overloaded for the class to allow a Date object to be printed using the << operator. For example, the date February 19th, 2016, should be printed like this: 2/19/2016.
Member functions that do not change any data members of the object that called them should be callable by a constant Date object. Likewise, functions that take a Date object as a parameter should not result in unnecessary copy constructor calls or allow the Date object in the calling routine that was passed in to be altered. Think carefully about where the const keyword needs to be coded.
