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Date: 16.10.2012 Name: Candale Andrei

Problem Statement:A math teacher needs a program in order to help students to test different properties of

numbers. The program manages a list of numbers and also allows students to repeatedly

execute various functionalities.

Numerical Lists Feature List

F1. Add a number to the list.

F2. Insert a numberat a given position.

F3. Remove a numberfrom a given position.

F4. Remove all numbers between two given positions.

F5. Replace all occurences ofa sublist with another sublist.

F6. Write all prime numbers between two given positions.

F7. Write all odd numbers between two given position.

F8. Compute the sum of all numbers between two given positions.

F9. Compute the greatest common divisior of all numbers between two given positions.

F10. Compute the maximum of all numbers between two given positions.

F11. Filter only the prime numbers.

F12. Filter only the negative numbers.

F13. Undo last performed operation.

Iteration Plan:Iteration Planned Features

I1.

F1. Add a number to the list.

F2. Insert a numberat a given position.

F3. Remove a numberfrom a given position.

F4. Remove all numbers between two given positions.

F5. Replace all occurences ofa sublist with another sublist.

I2.

F6. Write all prime numbers between two given positions.

F7. Write all odd numbers between two given position.F8. Compute the sum of all numbers between two given positions.

F9. Compute the greatest common divisior of all numbers between two given positions.

F10. Compute the maximum of all numbers between two given positions.

F11. Filter only the prime numbers.

F12. Filter only the negative numbers.

F13. Undo last performed operation.

I3.

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Iteration 1

Work items:

Running Scenario Add feature (F1)

Add feature (F1)

User Program DescriptionPlease type your command or'help' to see a full list ofcommands.

Menu

help Ask for all the available commandsadd value - adds a value to the end

of the list

...

Returns all the available commands

add 1 Add number to the end of the list

[1] Returns the list

add a Add a character

The second parameter must be a

number

The program alerts the user that the

values are not correct.

ad 2 The user executes an incorrect

commandThe command you entered is notvalidPlease type your command or'help' to see a full list ofcommands.

The program alerts theuser that the

command was incorrect

Insert a numberat a given position (F2)

insert -1 at 0 Insert -1 at position 0

[-1,1] Returns the list

insert -2 at -10 Tries to insert -2 atthe position -10

[-2,-1,1] The program inserts the number at

the first position

insert 2 at 100 Insert 2 at position 100[-2,-1,1,2] The program inserts the number at

T1. Implement a procedure to decode the users input for each feature

from F1 to F13T2. Implement a procedure to execute the users command for each

feature from F1 to F13.

T3. Implement auxiliary functions:

- prime number check (for F6)

- gratest common divizior (for F9)

T4. Implement user interface.

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the last position

Remove a numberfrom a given position(F3)

remove 1 Remove the value from position 1

[-1,1,2] Returns the list

remove -1 Return the value at position -1

The position must be a naturalnumber between 0 and the lengthof the list.

The program alerts the user thatsuch an operation is not posible

Remove all numbers between two given positions (F4)

remove from 0 to

2

Remove all the values in between

the positions 0 and 2

[2] Returns the list

Replace all occurences ofa sublist with another sublist (F5)

replace 2 with 1 2

3 4

Replace all the occurrences of 2

with the list 1 2 3 4

[1,2,3,4]

replace 1 2 with-1 -2 -3

Replace all the occurrences of thesublist 1 2 with the sublist -1 -2 -3

[-1, -2, -3, 3, 4] Returns the list

Write all prime numbers between two given positions. (F6)

prime from 0 to 2 Returns the prime numbers in

between position 0 and 2

[-2,-3] Returns the list

prime from 3 to 0 Return prime numbers in between

position 3 and 0The first position cannot begreater than the last one

The program alerts the user

thatsuch an operation cannont bedone

Write all odd numbers between two given position (F7)

odd from 0 to 4 Return the odd number in between

the position 0 and 5[-1, -3, 3] Returns the list

Compute the sum of all numbers between two given positions. (F8)

sum from 0 to 3 Returns the sum of the elements in

between the positions 0 and 3

-3 Returns the sum

Compute the greatest common divisior of all numbers between two given positions (F9)

gcd from 0 to 4 Returns the greatest commondivizor in between positions 0 and

4

1 Returns result

. Compute the maximum of all numbers between two given positions (F10)

max from 0 to 3 Returns the maximum value in

between position 0 and 3

3 Returns the result

Filter only the prime numbers (F11)

filter prime Returns the prime numbers from

the list[-2, -3, 3] Returns the sublist with prime

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numbers

Filter only the negative numbers (F12)

filter negative Returns the negative numbers from

the list[-1, -2, -3] Returns thesublist with negative

numbersUndo last performed operation (F13)

undo Reverses the last operation

[1,2,3,4]