Implement class member function : member method « Class « C++ Tutorial

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2. Class
3. member method

#include <iostream> 
using namespace std; 
 
// Declare the ThreeDimension class. 
class ThreeDimension {  
public: 
  int X; 
  int Y; 
  int Z; 
 
  int range();   
}; 
 
// Implement the range member function.  
int ThreeDimension::range() { 
  return Z * Y; 
} 
 
int main() {  
  ThreeDimension aDimension; 
  ThreeDimension bDimension; 
 
  int range1, range2;  
 
  // Assign values to fields in aDimension. 
  aDimension.X = 7; 
  aDimension.Y = 16; 
  aDimension.Z = 21; 
  
  // Assign values to fields in bDimension. 
  bDimension.X = 2; 
  bDimension.Y = 14; 
  bDimension.Z = 12; 
 
  // Compute the ranges assuming a full tank of gas. 
  range1 = aDimension.range(); 
  range2 = bDimension.range(); 
  
  cout << range1 << "\n";  
 
  cout << range2;  
  
  return 0; 
}

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