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What will be the output of the following program?

#include 
 class GateBase
 {  
    public:       
       float x; 
 };  
 class GateDerived : public GateBase 
 {    
    public:        
      char ch;        
       void Process()         
       {      
           ch = (int)((x=12.0)/3.0);           
      }       
      void Display()    
     {         
         coutint)ch;    
     }  
  };  
  int main() 
  {    
   class GateDerived  *objDev = new GateDerived;    
  objDev->Process();    
  objDev->Display();    
  return 0;  
}