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  1. #include <iostream>
  2. #include <string>
  3. #include <ctype.h>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9.   int i;
  10.   string first = "Bart";
  11.   string last = "Simpson";
  12.   string both = first + " " + last;
  13.  
  14.   // print out the original name first
  15.  
  16.   cout << both << endl;
  17.  
  18.   // invert capitalization (small to big, big to small)
  19.  
  20.   for (i=0; i<both.size(); i++)
  21.     if (isupper(both[i]))
  22.       both[i] = tolower(both[i]);
  23.     else
  24.       if (islower(both[i]))
  25.         both[i] = toupper(both[i]);
  26.  
  27.   // print the result out
  28.  
  29.   cout << both << endl;
  30.  
  31.   // capitalize each character
  32.  
  33.   for (i=0; i<both.size(); i++)
  34.     both[i] = toupper(both[i]);
  35.  
  36.   // print the result out
  37.  
  38.   cout << both << endl;
  39.  
  40.   // make each character lower case
  41.  
  42.   for (i=0; i<both.size(); i++)
  43.     both[i] = tolower(both[i]);
  44.  
  45.   // print the result out
  46.  
  47.   cout << both << endl;
  48.  
  49.   return 0;
  50. }
Success #stdin #stdout 0.01s 2860KB
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stdin
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Standard input is empty
stdout
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Bart Simpson
bART sIMPSON
BART SIMPSON
bart simpson
https://ideone.com/1Mfeh
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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