Homework Answers

Write a program to implement the Date class which has three data members named day, month and year.

1.  Provide a constructor, which takes arguments (you may set values of data members to 0).

2.  Write getter and setter functions (input and show functions) for the Date class.

3.  Also write a member function void CompareDates(Date d1, Date d2) which tells which date comes first.

Example output:

13/11/2009 comes before 20/12/2009

Create a class named ‘Rectangle’, Triangle and Square.

Rectangle class:

                       Data Members: length, width and area

                       Functions:input() ,area_Calculator()

Square class:

                       Data Members: length,area

                       Functions :input() , area_Calculator()

Triangle class:

                       Data Members: base,hieght,area

                       Functions :Input() , area_Calculator()

Compare their areas in a friend function and tell which shape has greatest area.

Area of rectangle: length*width;

Area of triangle: ½(base*height);

Area of square: (length)²

Create a class named ‘CalculateArea’ to calculate the area of three different diagrams i.e. Rectangle, Triangle and a Square using function overloading.

First prompt the user to select the diagram for which he wants the area:

Press 1 for Rectangle

Press 2 for Triangle

Press 3 for Square

After the selected option, call the respective function of the selected diagram and print the area.

Area of rectangle: length*width;

Area of triangle: ½(base*height);

Area of square: (length)²

Write a program that creates a class called student. The data members of the class are name and age.

·      Create a nullary constructor and initialize the class object.

·      Create a parameterized constructor that can set the values being passed from the main function.

·      Create a display function called showall( ) which will be used to show values that have been set.

Use the default copy constructor to show that copying of simple objects can be accomplished through the use of the default copy constructor.

Write a Python program that accepts a string and calculate thenumber of digits and letters

Sample Data : Python 3.9

Expected Output :

Letters 6

Digits 2

Write a Python program to convert temperatures to and from celsius, fahrenheit.

[ Formula : c/5 = f-32/9 [ where c = temperature in celsius and f = temperature in fahrenheit ]

Expected

Output :

60°C is 140 in Fahrenheit

45°F is 7 in Celsius