// Justin C. Miller
// University of Wisconsin Oshkosh
// Made for: http://www.geocities.com/neonprimetime.geo/index.html
// Date: 2001
// Borland Builder 4.0
// const
#include 
#include 

int main()
{
        const double PI = 3.14 ;
        double Radius = 10 ;
        cout << "Radius =" << Radius << endl ;
        cout << "PI =" << PI << endl ;
        cout << "Area = PI * Radius * Radius" << endl ;
        cout << "Area =" << (PI * Radius * Radius) << endl ;

        cout << "Now I want to change the Radius" << endl ;
        Radius = 12 ;
        cout << "New Radius =" << Radius << endl ;
        cout << "Everything worked OK!" << endl;
        cout << "But..." << endl ;
        cout << "If I want to change the value of PI" << endl ;
        cout << "I can't!   PI = 6  would cause a compiler error!" << endl ;
        cout << "PI is a constant value that CANNOT be changed!" << endl ;

        getch() ;
        return 0 ;
}

// OUTPUT

    Source: geocities.com/neonprimetime.geo/cpp/cpp_SourceCode

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