Draughts Essay, Research Paper
Program construction
The completed programs to be submitted to the charon system by the date indicated.
C++ Familiarisation
You should expect to finish this work by the end of week 3 (Now week 4 due to non availability
of the Borland C++ compiler in the labs) at the latest. The completed programs to be submitted to
the charon system by this date.
A non extendable extension for this work is granted till the end of week 4 (Now week 5).
However, for your own personal satisfaction the charon system will still judge your work after this
date.
Exercise 1.1
Hello world
A program to write out the greeting message “hello world” to the terminal.
Input
Expected output
Hello world
Key points
A first C++ program
Using C++ Builder
Exercise 1.2
Times Table
A program to print out the 5 times table.
Input
Expected output
1 * 5 = 5
2 * 5 = 10
3 * 5 = 15
4 * 5 = 20
5 * 5 = 25
6 * 5 = 30
7 * 5 = 35
8 * 5 = 40
9 * 5 = 45
10 * 5 = 50
11 * 5 = 55
12 * 5 = 60
Key points
Using loops
Output of numbers and text
Exercise 1.3
Times Table the general case
A program to print out any times table. The input to this program is an integer number specifying which time table is to be
printed.
Hint:
int num; std::cin >> num;
would read a decimal number into the variable num.
Input
Expected output
2
1 * 2 = 2
2 * 2 = 4
3 * 2 = 6
4 * 2 = 8
5 * 2 = 10
6 * 2 = 12
7 * 2 = 14
8 * 2 = 16
9 * 2 = 18
10 * 2 = 20
11 * 2 = 22
12 * 2 = 24
Key points
Using loops
Output of numbers and text
Input of numbers in C++
Exercise 1.4
Order
A program to read in three integer numbers and print them out in ascending order. For example, if the numbers input were 10
7 8 then your output would be:
7 8 10
Input
Expected output
10 7 8
7 8 10
Key points
Selection constructs
Input/output of numbers in C++
To gain familiarity with nested selection statements.
Exercise 1.5
Calculator
A program to implement a desk calculator that has no operator precedence. For example, if the formula 2 + 3 * 4; where
input the result would be 20. Likewise if the formula 4 + 3 * 2; where input the result would be 14.
Input
Expected output
2 + 3 * 4;
Answer = 20
3 + 4 * 2 + 1;
Answer = 15
To gain familiarity with loops and selection statements.
Hint: A syntax diagram for the expression is shown below:
+———+ +——+
—————-| Number |————-| ; |—
/ +———+ \ +——+
| |
| +———+ |
\——| + – * / |——/
+———+
This shows that a valid expression is a number followed by either a ‘;’ or the operator ‘+’, ‘-’, ‘*’, ‘/’. If an operator is found
then the next item expected is a number. If the next item found is a ‘;’ then the expression is finished.
Key points
Revision of loops and selection constructs in C++
Input of characters and numbers
Syntax diagrams
Building a class
Exercise 2.1
You should expect to finish this work by the end of week 6 (Now week 7) at the latest. The
completed programs to be submitted to the charon system by this date.
A non extendable extension for this work is granted till the end of week 7 (Now week 8).
However, for your own personal satisfaction the charon system will still judge your work after this
date.
The exercise is to create the class Employee_pay that can be used as part of a larger program to manage the pay of
employees in a SME (Small to Medium Enterprise). The responsibilities of the class Employee_Pay are as follows:
Method
Responsibility
set_hourly_rate
Sets the hourly rate.
add_hours_worked
Accumulates the number of hours worked so far.
pay
Delivers the pay for this week. Tax is deducted at 20% of the
total pay.
reset
Resets the hours worked back to zero.
hours_worked
Delivers the number of hours worked so far this week.
pay_rate
Delivers the hourly pay rate.
The partial C++ specification of this class is shown below:
class Employee_Pay
{
public:
Employee_Pay();
void add_hours_worked( int number_of_hours_worked );
void set_hourly_rate( float hourly_pay_rate );
void reset();
float pay();
int hours_worked();
float pay_rate();
private:
};
You may wish to use the following test program to help test the class that you have created.
#include
#include
void main()
{
std::cout
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