Header Files

• Class definitions with method prototypes are placed in header files.
• C++ header file names often have the extension ".H".

  For example, the previous definition of ItemInfo could be placed in item.H.

  Here is the full contents of item.H:

  #ifndef _ITEM_H
  #define _ITEM_H
  
  #include <iostream>
  #include <string>
  using namespace std;
  
  class ItemInfo {
  public:
    ItemInfo(double p, string c);
    double getPrice();
    string getColor();
    virtual void display();
  private:
    double price;
    string color;
  };
  
  #endif/* _ITEM_H */