1:  /* Parvulescu Cosmin
   2:     Grupa 202
   3:     cerc.java */
   4:   
   5:  package Mostenire_Cerc_Cilindru;
   6:   
   7:  public class cerc {
   8:      double raza;
   9:   
  10:      cerc()                      { raza = 0; }
  11:      cerc(double _raza)          { raza = _raza; }
  12:   
  13:      void setRaza(double _raza)  { raza = _raza; }
  14:      double getRaza()            { return raza; }
  15:   
  16:      double getArie()            { return 3.14 * raza * raza; }
  17:   
  18:      void writeRaza()            { System.out.println("Raza este " + raza + "... "); }
  19:      void writeArie()            { System.out.println("Aria este " + getArie() + "... "); }
  20:  }
  21:   
  22:  /* Parvulescu Cosmin
  23:     Grupa 202
  24:     cilindru.java */
  25:   
  26:  package Mostenire_Cerc_Cilindru;
  27:   
  28:  public class cilindru extends cerc{
  29:   
  30:      double inaltime;
  31:   
  32:      cilindru()                               { super(); inaltime = 0; }
  33:      cilindru(double _raza, double _inaltime) { super(_raza); inaltime = _inaltime; }
  34:   
  35:      double getInaltime()                     { return inaltime; }
  36:      void setInaltime(double _inaltime)       { inaltime = _inaltime; }
  37:   
  38:      double getArie()                         { return ( 2 * 3.14 * raza * ( raza + inaltime ) ); }
  39:      void writeArie()                         { System.out.println("Aria este " + getArie() + "... "); }
  40:  }