Question

1. Write a program that reads the letter codes of a telephone number pad and converts them into their corresponding number patterns.
2. a.        One acceptable form of output:

Sample input:              Sample Output:

800-MATTRESS 800-628-8737 (leave off the last “S”)

800-mattress                800-628-8737 (leave off the last “S”)

2. Another acceptable form of output:

Sample input:              Sample Output:

            8   8

0   0

  0 0

   M 6

A 2

T                                8

T                                8

R                                7

E                                 3

S                                 7

1. The letters ‘A’ to ‘Z’ and ‘a’ to ‘z’ should print the corresponding telephone digit.
2. This program should use two levels of loops.
   1. One loop should prompt the user to ask them if they wish to convert a telephone letter pattern. The user should be prompted when the program first begins execution and after each completed execution.
   2. (1)             If they do wish to convert a telephone letter pattern, the program should execute again.

(2)             If they do not wish to convert a telephone letter pattern, the program should

terminate

(3) Valid values that the user can enter as to whether they wish to execute the

program are: ‘Y’ or ‘y’ or “N’ or ‘n’ .

(a)      All other responses should error out and user the should be requested to

           enter a valid response.            

1. 2. The other loop should convert a 10 character letter pattern into the corresponding number pattern.
1.             The user should be prompted to enter the 10 letter sequence.
2.             Only the first 10 characters should be able to be entered and converted.
   3. The valid patterns for letter to number conversion of the telephone are:

1	2: ABC	3: DEF
4: GHI	5: JKL	6: MNO
7: PQRS	8: TUV	9: WXYZ
*	0	#

A counter should keep track of how many telephone button conversions have been processed on and printed on the report.

A solid line of separators such as the **** or #### should be placed between each telephone button conversion done.

Place a good descriptive heading at the top of the report below the required first several output lines indicated at the top of this document.

At least three separate conversions should be processed.

D.        Save the program with the name: Lab4tele.cpp

E.        Test Data:

           

Test Case Number	Phrase	Output
1	800-Compute	?
2	808-Science	?
3	888-Program	?

F.         For this program, hand in:

1. A copy of the source code for the program.
2. A copy of the screen print for the output for the program run.

PLEASE USE ANY LOOP(FOR, WHILE, DO). DO NOT USE STRINGS OR ARRAYS.  

Answer 1

thanks for the question, here is the complete code in C++.

Have used two while loops and have not used string or arrays : )

thanks, let me know for any questions or help. if you are satisfied please do rate.

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# include <iostream>

using namespace std;

// takes in a character and decodes the character and returns it

char getDigit(char letter){

                if('0'<=letter && letter<='9') return letter;

                switch(letter){

                                case 'a':case 'b' : case 'c' : case 'A':case 'B' : case 'C' : return '2';

                                case 'd':case 'e' : case 'f' : case 'D':case 'E' : case 'F' : return '3';

                                case 'g':case 'h' : case 'i' : case 'G':case 'H' : case 'I' : return '4';

                                case 'j':case 'k' : case 'l' : case 'J':case 'K' : case 'L' : return '5';

                                case 'm':case 'n' : case 'o' : case 'M':case 'N' : case 'O' : return '6';

                                case 'p':case 'q' : case 'r' : case 's':case 'P' : case 'Q' : case 'R': case 'S': return '7';

                                case 't':case 'u' : case 'v' : case 'T':case 'U' : case 'V' : return '8';

                                case 'w':case 'x' : case 'y' : case 'z':case 'W' : case 'X' : case 'Y': case 'Z': return '9';

                }

               

}

int main(){

               

                char repeat;

               

                do{

                                cout<<"Enter the 10 letter sequence you like to convert : ";

                               

                                int digitsPrinted = 0;

                                char character;

                               

                                while (digitsPrinted<10){

                                                cin>>character;

                                                if(('0'<=character && character <='9') ||

                                                                ('a'<=character && character <='z') ||

                                                                ('A'<= character && character <='Z') ){

                                                                                cout<<getDigit(character)            ;

                                                                                digitsPrinted++;

                                                                                if(digitsPrinted==3 || digitsPrinted==6) cout<<"-";

                                                                }

                                }

                                cin.ignore(1024,'\n'); // flush all extra characters

                                cout<<endl<<"============"<<endl;

                               

                                do{

                                                cout<<"Do you want to repeat again (y/Y/n/N): ";

                                                cin>> repeat;

                                                if((!(repeat=='Y' || repeat=='y' || repeat =='n' || repeat == 'N')))cout<<endl<<"Sorry: Invalid character entered\n\n";

                                               

                                }while(!(repeat=='Y' || repeat=='y' || repeat =='n' || repeat == 'N'));

                }while(repeat=='y' || repeat =='Y');

}

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