Question

In the You Do It section of this chapter you wrote a program named MaskConvertLetter
that accepts a user’s lowercase letter and converts it to its uppercase equivalent. Now
write a similar program that uses a mask to convert a user’s uppercase entry to its lower-
case equivalent. Save the file as MaskConvertLetter2.cpp.

Answer 1

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#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <string>
#include <cctype>
using namespace std;
int main(){
string letter;
cout<<"Enter a letter : ";
getline(cin, letter);
cout<<"You entered : ";
cout<<letter<<endl;
for(int i = 0; i < letter.size(); i++)
letter[i] = toupper(letter[i]);
cout<<"Uppercase equivalent : "<<letter<<endl;
system&#40;"pause"&#41;;
return 0;
}
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#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <string>
#include <cctype>
using namespace std;
int main(){
string letter;
cout<<"Enter a letter : ";
getline(cin, letter);
cout<<"You entered : ";
cout<<letter<<endl;
for(int i = 0; i < letter.size(); i++)
letter[i] = tolower(letter[i]);
cout<<"Lowercase equivalent : "<<letter<<endl;
system&#40;"pause"&#41;;
return 0;
}



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