Assignment 4: Classes (Due: Th, May 15)

Define a class ‘merchant’ for handling merchant-like objects. The class should have a public interface with the following members.

• merchant — a parameterless constructor initializing to 1000 the number of items each merchant possesses.
• sell — a two-parameter function transferring a specified number of items to a specified merchant. The function should not put any restriction on the order of its input values.
• buy — a two-parameter function transferring a specified number of items from a specified merchant. The function should not put any restriction on the order of its input values.
• balance — a parameterless function which writes out the number of items in the possession of its merchant.

Notes.

• Submit your source file ‘merchant.cpp’ with the ‘submit c230aa lab4 merchant.cpp’ command.
• Use the following function in the submitted program.
   int main(){ 
       merchant a, b, c; 
     a.sell(50,b); 
     a.sell(c,50); 
     c.buy(70,b); 
     a.balance(); 
     b.balance(); 
     c.balance(); 
     reurn 0; 
   }