/** * VendingMachne simulates a campus vending machine. * * @author Chuck Bates * @version 8/16 */ public class VendingMachine { private int drinks = 10; private int price = 125; private int balance = 0; /** * Constructor for objects of class VendingMachine */ public VendingMachine() { } /** * displayGreeting displays a brief welcome and warns customer * if the vending machine is empty */ public void displayGreeting() { System.out.println(" Thank you for using this machine "); if(drinks < 1){ System.out.println(" I am sorry, the machine is currently empty "); }else{ return; } } /** * getPrice returns the proce of one drink */ public int getPrice() { return price; } /** * insertMoney adds the number of cents to the credit balance. */ public int insertMoney(int amount) { if( drinks < 0 ){ displayGreeting(); }else{ // balance = balance + amount; return balance; } } } // end of class