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    <p>This is ugly, verbose, and generally a dumb way to go. But I figured I'd post a complete code example by way of explanation. For extra points it's actually possible to define a compile-time expanded iteration over the solar planets by tweaking the template specializations just a tad.</p> <pre><code>#include &lt;string&gt; #include &lt;sstream&gt; #include &lt;iostream&gt; #include &lt;cstdlib&gt; class Planet { public: static const double G = 6.67300E-11; Planet(const ::std::string &amp;name, double mass, double radius) : name_(name), mass_(mass), radius_(radius) {} const ::std::string &amp;name() const { return name_; } double surfaceGravity() const { return G * mass_ / (radius_ * radius_); } double surfaceWeight(double otherMass) const { return otherMass * surfaceGravity(); } private: const ::std::string name_; const double mass_; const double radius_; }; enum SolarPlanets { MERCURY, VENUS, EARTH, MARS, JUPITER, SATURN, URANUS, NEPTUNE }; template &lt;SolarPlanets planet&gt; class SolarPlanet : public Planet { }; template &lt;&gt; class SolarPlanet&lt;MERCURY&gt; : public Planet { public: SolarPlanet() : Planet("MERCURY", 3.303e+23, 2.4397e6) {} }; template &lt;&gt; class SolarPlanet&lt;VENUS&gt; : public Planet { public: SolarPlanet() : Planet("VENUS", 4.869e+24, 6.0518e6) {} }; template &lt;&gt; class SolarPlanet&lt;EARTH&gt; : public Planet { public: SolarPlanet() : Planet("EARTH", 5.976e+24, 6.37814e6) {} }; template &lt;&gt; class SolarPlanet&lt;MARS&gt; : public Planet { public: SolarPlanet() : Planet("MARS", 6.421e+23, 3.3972e6) {} }; template &lt;&gt; class SolarPlanet&lt;JUPITER&gt; : public Planet { public: SolarPlanet() : Planet("JUPITER", 1.9e+27, 7.1492e7 ) {} }; template &lt;&gt; class SolarPlanet&lt;SATURN&gt; : public Planet { public: SolarPlanet() : Planet("SATURN", 5.688e+26, 6.0268e7) {} }; template &lt;&gt; class SolarPlanet&lt;URANUS&gt; : public Planet { public: SolarPlanet() : Planet("URANUS", 8.686e+25, 2.5559e7) {} }; template &lt;&gt; class SolarPlanet&lt;NEPTUNE&gt; : public Planet { public: SolarPlanet() : Planet("NEPTUNE", 1.024e+26, 2.4746e7) {} }; void printTerranWeightOnPlanet( ::std::ostream &amp;os, double terran_mass, const Planet &amp;p ) { const double mass = terran_mass / SolarPlanet&lt;EARTH&gt;().surfaceGravity(); os &lt;&lt; "Your weight on " &lt;&lt; p.name() &lt;&lt; " is " &lt;&lt; p.surfaceWeight(mass) &lt;&lt; '\n'; } int main(int argc, const char *argv[]) { if (argc != 2) { ::std::cerr &lt;&lt; "Usage: " &lt;&lt; argv[0] &lt;&lt; " &lt;earth_weight&gt;\n"; return 1; } const double earthweight = ::std::atof(argv[1]); printTerranWeightOnPlanet(::std::cout, earthweight, SolarPlanet&lt;MERCURY&gt;()); printTerranWeightOnPlanet(::std::cout, earthweight, SolarPlanet&lt;VENUS&gt;()); printTerranWeightOnPlanet(::std::cout, earthweight, SolarPlanet&lt;EARTH&gt;()); printTerranWeightOnPlanet(::std::cout, earthweight, SolarPlanet&lt;MARS&gt;()); printTerranWeightOnPlanet(::std::cout, earthweight, SolarPlanet&lt;JUPITER&gt;()); printTerranWeightOnPlanet(::std::cout, earthweight, SolarPlanet&lt;SATURN&gt;()); printTerranWeightOnPlanet(::std::cout, earthweight, SolarPlanet&lt;URANUS&gt;()); printTerranWeightOnPlanet(::std::cout, earthweight, SolarPlanet&lt;NEPTUNE&gt;()); return 0; } </code></pre>
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    1. POHow to write a Java-enum-like class with multiple data fields in C++?
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    1. COPlanet<EARTH> and Planet<JUPITER> will be identified as two different types right? I want to be able to refer them with the same type of reference like I can do in Java. (e.g.Planet currentPlanet=Planet.EARTH and Planet nextPlanet=Planet.MARS)
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    2. CO...and template specialization will give me distinct types rather than distinct values!
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    3. COI was in a hurry, but your objections are sort of correct, but sort of not, so I'm going to show you.
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