Lower Case To Upper Case Converter in C++

A simple program that I wrote in C++ to covert lowercase to uppercase of string in C++.

Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

Program Listing

#include <iostream>

#include <cctype>

#include <string>

int main()

{

    using namespace std;

    string str;

   cout << " Lower Case To Upper Case String Conversion 1.0";

   cout << "\n\n";

   cout << "Enter a String : ";

   getline(cin,str);

    for (size_t i = 0; i < str.length(); ++i)

    {

        str[i]=toupper(str[i]);

    }

    cout << "\n";

    cout<<"\n Converted Results in Upper Case : "  <<str << ".";

    for (size_t i = 0; i < str.length(); ++i)

    {

        str[i]=tolower(str[i]);

    }

    cout<<"\n Converted Results in Lower Case : "  <<str << ".";

    cout << "\n\n";

    system("PAUSE");

}