koding c++ luas tabung

#include<iostream.h>
class tabung
{
      public:
      float jari_jari;
      float tinggi;
      public:
             void setJari_jari(float jari_jari)
             {
                  this->jari_jari=jari_jari;
                  }
             float getJari_jari()
             {
                   return jari_jari;
                   }
             void setTinggi(float tinggi)
             {
                  this->tinggi=tinggi;
                  }
             float getTinggi()
             {
                   return tinggi;
                   }
             float getLuas ()
             {
                   return 3.14*jari_jari*jari_jari*tinggi;
                   }
};

main ()
{

     float x,y;
     tabung hasil;
    
     cout<<"jari-jari:";
     cin>>x;
    
     cout<<"tinggi:";
     cin>>y;
    
    
     hasil.setJari_jari(x);
     hasil.setTinggi(y);
    
     cout<<"jari-jari:"<<hasil.getJari_jari()<<endl;
     cout<<"tinggi:"<<hasil.getTinggi()<<endl;
     cout<<"luas:"<<hasil.getLuas()<<endl;
     system("pause");
     
      }
     

koding c++ konversi suhu

#include<iostream.h>
class suhu
{
      public:
             float celcius;
             float reamur;
             float kelvin;
             float fahrenhait;
            
      public:
              void setCelcius(float celcius)
             {
                  this->celcius=celcius;
                  }
             float getCelcius()
             {
                 return celcius;
                 }
             void setReamur (float reamur)
             {
                  this->reamur=reamur;
                  }
             float getReamur()
             {
                   return reamur;
                   }
             void setKelvin(float kelvin)
             {
                  this->kelvin=kelvin;
                  }
             float getKelvin()
             {
                   return kelvin;
                   }
             void setFahrenhait (float fahrenhait)
             {
                  this->fahrenhait=fahrenhait;
                  }
             float getFahrenhait()
             {
                   return fahrenhait;
                   }
    
             float getR()
             {
                   return 0.8*celcius;
                   }
             float getF()
             {
                   return 1.8*celcius+32;
                   }
             float getK()
             {
                   return celcius*273.15;
                   }
                   };
                  
main()
{
      float x;
      suhu hasil;
     
      cout<<" Suhu dalam celcius :  ";
      cin>>x;
    
      hasil.setCelcius(x);
   
     
      cout<<"CELCIUS KE REAMUR :"<<hasil.getR()<<endl;
      cout<<"CELCIUS KE KELVIN :"<<hasil.getK()<<endl;
      cout<<"CELCIUS KE FAHRENHAIT:"<<hasil.getF()<<endl;
      system("pause");
      }
                  

koding c++ luas lingkaran

#include<iostream.h>
class Lingkaran
{
     protected:
       float jari_jari;
        public:
               void setJari_jari(float jari_jari)
               {
                    this->jari_jari=jari_jari;
                    }
             float getJari_jari()
              {
                  return jari_jari;
                  }
               float getLuas()
               {
                   return  3.14*jari_jari*jari_jari;
                   }
                   };
                  
main ()
{
     float x;
      Lingkaran hasil;
     
      cout<<"jari-jari : "  ;
      cin>>x;
     
      hasil.setJari_jari(x);
     
      cout<<"luas lingkaran adalah : "<<hasil.getLuas()<<endl;
      system("pause");
      }

koding berat badan ideal

#include<iostream.h>
class bmi
{
      public:
             float berat;
            float tinggi;
      public:
             void setBerat(float berat)
             {
                  this->berat=berat;
                  }
            float getBerat()
             {
                   return berat;
                   }
             void setTinggi(float tinggi)
             {
                  this->tinggi=tinggi;
                  }
             float getTinggi()
             {
                 return tinggi;
                 }
           
             float ideal()
             {
                   return berat/(tinggi*tinggi)*10000;
                   }
                   };
                  
main()
{
      float  x,y;
     
      bmi hasil;
     
      cout<<"berat :";
      cin>>x;
     
      cout<<"tinggi: ";
      cin>>y;
     
      hasil.setBerat(x);
      hasil.setTinggi(y);
     
      cout<<" BMI Anda adalah : "<<hasil.ideal()<<endl;
     
      if (hasil.ideal()<18.5)
      {
              cout<<"Kurang"<<endl;
              }
              else if (hasil.ideal()<22.9)
              {
                   cout<<"Normal"<<endl;
                   }
                  else if (hasil.ideal()<30)
                   {
                           cout<<"Kelebihan berat badan"<<endl;
                           }
                           else if (hasil.ideal()<=50)
                           {
                               cout<<"Obesitas"<<endl;
                               }


system ("pause");
}