C++ - loop and conditions example
=================================

Public domain    
********************************************************************************
    
    // ask for a person's name, and generate a framed greeting
    #include <iostream>
    #include <string>
    
    using namespace std;
    
    int main()
    {
      // ask for the person's name
      cout << "Please enter your first name: ";
      string name;
      cin >> name;
    
      // build the message that we intend to write
      const string greeting = "Hello, " + name + "!";
    
      // the number of blanks surrounding the greeting
      const int pad = 6;
    
      // the number of rows and columns to write
      const int rows = pad * 2 + 3;
      const string::size_type cols = greeting.size() + pad * 2 + 2;
    
      // write a blank line to separate the output from the input
      cout << endl;
    
      for (int i=0; i < rows; ++i)
      {
        for (string::size_type j=0; j < cols; ++j)
        {
          if (j == 0 || j == cols - 1 || i == 0 || i == rows - 1)
            cout << "*";
          else if (i == pad + 1 && j > pad && j < cols - pad - 1)
          {
            cout << greeting;
            j += greeting.size() - 1;
          }
          else
            cout << " ";
        }
        cout << endl;
      }
      return 0;
    }
    
Output :
    
    Please enter your first name: Pejman
    
    ****************************
    *                          *
    *                          *
    *                          *
    *                          *
    *                          *
    *                          *
    *      Hello, Pejman!      *
    *                          *
    *                          *
    *                          *
    *                          *
    *                          *
    *                          *
    ****************************
    
********************************************************************************
_BY: Pejman Moghadam_  
_TAG: cpp, string-size-type_  
_DATE: 2011-09-18 00:00:51_