Programming Concepts CS 225 for C++
To make telephone numbers easier to remember, some companies use digits and letters (or only letters) to show their telephone number. In some cases, to make a telephone number meaningful, companies might use more than seven digits and letters. Here are some examples:
Phone Number in Display |
Note |
Actual Phone Number |
GET LOAN |
- |
438-5626 |
CALL HOME |
More than seven digits/letters used for ease of remembrance. |
225-5466 |
111 GOLD |
- |
111-4653 |
Glass4u |
- |
452-7748 |
Write a program that prompts the user to enter a telephone number expressed in letters (or digits and letters) and outputs the corresponding telephone number in digits. If the user enters more than seven characters, then process only the first seven valid digits. Also output a - (hyphen) after the third digit. Allow the user to use digits, both uppercase and lowercase letters, and spaces between words.
If a number contains invalid letters such as a number GOT $$99, your program should report and terminate the processing of that phone number (do not terminate the whole program) and ask for another number.
Your program should process as many telephone numbers as the user wants. You may use any valid approach to allow multiple sessions until user chooses to stop, such as CTRL+Z, enter y/n, enter q and so on. Whatever approach you use, provide proper prompt message(s) to users so they know how to use your program.
/****************************phone.cpp*********************************/
#include<iostream>
#include<string>
#include <algorithm>
using namespace std;
int main(){
//string array for text number and telephone
number
string phoneNumberDisplay[4] =
{"getloan","callhom","111gold","glass4u"};
string telephoneNumber[4] =
{"4385626","2255466","1114653","4527748"};
string textNumber;
char option='?';
do{
cout<<"Enter a telephone number in text format:
";
getline( cin, textNumber );//read all string with
space
textNumber.erase(remove(textNumber.begin(),textNumber.end(), ' '),
textNumber.end());//remove space
textNumber = textNumber.substr(0,7);//save only 7
letters
transform(textNumber.begin(), textNumber.end(),
textNumber.begin(), ::tolower);//change to lower case
int flag = 0;
//check for special character
for(int i = 0; i<textNumber.length(); i++) {
char ch = textNumber[i];
if(ch>=97&&ch<=122||ch>=48&&ch<=57){
flag = 1;
}
}
//if no special character
if(flag==1){
int found = 0;
for(int i = 0;i<4;i++){
//if number
found
if(phoneNumberDisplay[i].compare(textNumber)==0){
cout<<"Telephone number is:
"<<telephoneNumber[i].substr(0,3)<<"-"<<telephoneNumber[i].substr(3,7)<<endl;
found = 1;
}
}
if(found==0){
cout<<"Number not found!";
}
}
else{
cout<<"Number is not
valid!";
}
cout<<"Do you want any other number!(y/n):
";
cin>>option;
cin.ignore();
}
while(option!='n');
}
/*****************************output****************************************/
Enter a telephone number in text format: call HoME
Telephone number is: 225-5466
Do you want any other number!(y/n): y
Enter a telephone number in text format: get Loan'
Telephone number is: 438-5626
Do you want any other number!(y/n): y
Enter a telephone number in text format: 111Gold
Telephone number is: 111-4653
Do you want any other number!(y/n): y
Enter a telephone number in text format: glass4U
Telephone number is: 452-7748
Do you want any other number!(y/n): y
Enter a telephone number in text format: GOT $$99
Number not found!Do you want any other number!(y/n): n
--------------------------------
Please let me know if you have any doubt or modify the answer, Thanks :)
Programming Concepts CS 225 for C++ To make telephone numbers easier to remember, some companies use...
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