C++ Answers

1. Write a program using Function Concept to Calculate Perimeter of Circle, Square, Triangle and Rectangle.

i. Function calPerimeterCircle that do not accept arguments and do not return value.

ii. Function calPerimeterSquare that do not accept arguments and return value.

iii. Function calPerimeterTriangle that accept arguments and do not return value.

iv. Function calPerimeterRectangle that accept arguments and return value

2. Please refer the following formula as guidance :

a. Perimeter of Circle = 2 π r : r = radius , use π= 22/7

b. Perimeter of Square = 4a : a = side

c. Perimeter of Triangle = a+b+c : a=side1, b=side2 and c= side3

d. Perimeter of Rectangle = 2 +(l+w) : l=length, w= width 

Write a program that determines the frequency of each char in an input le. Your program

should

• read in an unknown number of chars from an input le named input.txt,

• using a function written by you, determine the frequency of occurrence of each char in

the list

• write each char followed by the frequency to the output le output.txt.

• The chars should appear in the output le in the same order as they rst appeared in

the input le.

First draw a 

ow chart and then attempt the code.

Example 1

Example input and output les can be seen in Listings 9 and 10.

Listing 9: Example of input.txt

1 a

2 a

3 f

4 e

5 v

6 x

7 a

8 v

9 f

10 f

11 f

12 g

Page 4 of 5

Listing 10: Example of output.txt

1 a 3

2 f 4

3 e 1

4 v 2

5 x 1

6 g 1

Example 2

Example of additional input and output les can be seen in Listings 11 and 12.

Listing 11: Example of input.txt

1 a

2 b

3 a

4 b

5 a

6 b

7 b

Listing 12: Example of output.txt

1 a 3

2 b 4

In traditional way, there are three classes: TRUCK (number, name , NoOfWheel, Price, Capacity, 

EnginePower, TypeOfConsump), BUS (number, name , NoOfWheel, Price, NoOfSeat, 

EnginePower, TypeOfConsump, Color, Speed), CAR (number, name , NoOfWheel, Price, 

NoOfSeat, EnginePower, TypeOfConsump, Color, Speed).

Divide the above three classes into two base classes and three derived classes. Each class will 

contain two member functions, getdata() to get that class data from user and putdata() to display that 

class data on the screen. How the above member data of three classes will be distributed into five 

classes as shown in the following diagram.

Use the aggregation (composition)

concept to define and implement the

class line(pl.x, pl.y, p2.x, p2.y) by using

two points variables P 1, and P2 of type

point2D class defined in QI. Beside the

two points Pl and P2, the line class has

the following functions: print(),

MoveRel(Dx,Dy) (use the point2D's

MoveRel(Dx,Dy) function of the two

points to achieve that), line(),

Use the point2D class as base class

to derive a new class called

Point3D(x,y,z). In addition to the

derived variables and functions

(methods) the new class has the

variable z with the functions setZ(z1),

getZ(), MoveRel(Dx,Dy,Dz), print(), and

the constructers point3D(),

point3D(x1,y1,z1,pColor), the destructor

-point3D(). Determine which function

is an override function and which one

is an overloaded function of the base

class.

Define the class point2D(x,y) for

the x, y coordinates. The class has x, y

and color as member variables and as

member function has setXY(x1,y1),

setColor(pColor), MoveRel(Dx,Dy),

getX(), getY(), getColor(pColor), Print(),

the constructers point2D(),

point2D(x1,y1,pColor), the destructor

-point2D(). The MoveRel(Dx, Dy)

function changed the x, y coordinates

by the amount of Dx, and Dy,

respectively (ex: x=x+Dx, y=Y+Dy).

Determine which function is accessor

and which one is mutator.

Write a program to read numbers from a file.

C++ programming

Create a structure called Exam that includes exam ID (string), name of the subject (string), 

registration fee (double) and the number of students registered during a week (7 days) (int 

array). • Write a function called getExamDetails() which is the data type of Exam that reads the 

details of the Exam and store them in the variable of the Exam structure. 

Hint: Use the given function prototype as 

Exam getExamDetails (Exam e); 

• Write a function called calExamFee() which takes three parameters, registration fee for 

the exam, the number of students registered during a week (7 days) array and the size of the array. Find the total exam registration fee during the week and print the total exam 

registration to the screen. • Call the getExamDetails() and calExamFee() in the main function to print the following 

output as required.

In traditional way, there are three classes: TRUCK (number, name , NoOfWheel, Price, Capacity, EnginePower, TypeOfConsump), BUS (number, name , NoOfWheel, Price, NoOfSeat, EnginePower, TypeOfConsump, Color, Speed), CAR (number, name , NoOfWheel, Price, NoOfSeat, EnginePower, TypeOfConsump, Color, Speed). 

Divide the above three classes into two base classes and three derived classes. Each class will contain two member functions, getdata() to get that class data from user and putdata() to display that class data on the screen. How the above member data of three classes will be distributed into five classes as shown in the following diagram.