I added a few new features

TicketMachine.java

@@ -9,20 +9,25 @@
  * @author David J. Barnes and Michael Kolling
  * @version 2008.03.30
  */
+import java.util.Scanner;
+
 public class TicketMachine
 {
     // The price of a ticket from this machine.
     private int price;
-    // The amount that you get off with coupon
-    private int coupon;
-    // The amount of money entered by a customer so far.
+
     private int balance;
     // The total amount of money collected by this machine.
     private int total;
+    
+    // The amount that you get off with coupon
+    private int discount;
     // The total amount of tickets sold
     private int ticketsSold = 0;
-    
     //private int score;
+    private int score;
+    
+    private int attempts;
 
     /**
      * Create a machine that issues tickets of the given price.
@@ -36,18 +41,51 @@ public class TicketMachine
         total = 0;
     }
     
-    public TicketMachine(){
-        price = 0;
-        balance = 0;
-        total = 0;
-    }
-    
+    /*
+    **public TicketMachine(){
+    **    price = 0;
+    **    balance = 0;
+    **    total = 0;
+    **}
+    */
+   
     public void setPrice(int ticketCost) {
         price = ticketCost;
     }
     
+    /**
+     * Return the price of a ticket.
+     */
+    public int getPrice(){
+        return price; 
+    }
+    
     public void empty(){
-        total = 0;
+        
+        while(attempts < 5){
+            int pin = inputHelper("Please enter the Security Pin: ");
+            if(pin == 4321){
+                if(total > 0) {
+                    System.out.println("*You have just emptied out the machine & received " + total + " Cents");
+                    total = 0;
+                } else {
+                    System.out.println("*There is no money in the machine...");
+                }
+                attempts = 0;
+                break;
+            } else {
+                attempts++;
+                System.out.println("You have Entered the incorrect Pin. " + (5 - attempts) + " Attempts remaining");
+            }
+        }
+        
+        if(attempts >= 5){
+            System.out.print("This Machine is currently locked out. Please contact your administator.\n");
+        }
+        
+        
+        
+
     }
     
     public void prompt() {
@@ -62,12 +100,8 @@ public class TicketMachine
         price = price - amount;
     }
 
-    /**
-     * Return the price of a ticket.
-     */
-    public int getPrice()
-    {
-        return coupon != 0 ? price - coupon : price; 
+    public int getCustomerPrice(){
+        return discount != 0 ? price - discount : price; 
     }
 
     /**
@@ -80,7 +114,7 @@ public class TicketMachine
     }
     
     public void insertCoupon(int couponAmount){
-        coupon = couponAmount;
+        discount = couponAmount;
     }
 
 
@@ -88,7 +122,11 @@ public class TicketMachine
      * Receive an amount of money in cents from a customer.
      */
     public void insertMoney(int amount) {
-        balance += amount;
+        if(amount > 0){
+            balance += amount;
+        } else {
+            System.out.println("Use a positive amount: " + amount);
+        }
     }
 
     /**
@@ -98,7 +136,7 @@ public class TicketMachine
      */
     public void printTicket() {
         
-        int salePrice = coupon != 0 ? price - coupon : price; 
+        int salePrice = discount != 0 ? price - discount : price; 
         
         int change = balance - salePrice;
         
@@ -108,19 +146,18 @@ public class TicketMachine
             System.out.println("# The BlueJ Line");
             System.out.println("# Ticket");
             System.out.println("# " + salePrice + " cents.");
-            if(coupon != 0){
-                System.out.println("# You have been discounted " + coupon + " cents.");
+            if(discount != 0){
+                System.out.println("# You have been discounted " + discount + " cents.");
             }
             System.out.println("##################");
             if(change > 0){
-                System.out.println("You have been refunded " + change);
+                System.out.println("*You have been refunded " + change);
             }
-            System.out.println();
             // Update the total collected with the balance.
-            total = price;
+            total += salePrice;
             // Clear the balance.
             balance = 0;
-            coupon = 0;
+            discount = 0;
             ticketsSold++;
             
         } else {
@@ -128,9 +165,23 @@ public class TicketMachine
                                 (salePrice - balance) + " cents to purchase a ticket.");          
         }
     }
-    public void refundBalance() {
-        System.out.println(balance + " cents Has just been refunded to you");
+    public int refundBalance() {
+        int amountToRefund;
+        System.out.println("*" + balance + " cents Has just been refunded to you");
+        if(discount > 0){
+            System.out.println("*Your coupon of " + discount + " cents has been now been returned.");
+            discount = 0;
+        }
+        
+        amountToRefund = balance;
         balance = 0;
+        return amountToRefund;
         
     }
+    public int inputHelper(String message) {
+        Scanner input = new Scanner(System.in);
+        System.out.print(message);
+        return input.nextInt();
+    }
+    
 }

bluej.pkg

@@ -1,18 +1,18 @@
 #BlueJ package file
-editor.fx.0.height=923
-editor.fx.0.width=1036
-editor.fx.0.x=884
-editor.fx.0.y=28
+editor.fx.0.height=960
+editor.fx.0.width=1114
+editor.fx.0.x=58
+editor.fx.0.y=27
 objectbench.height=101
-objectbench.width=461
-package.divider.horizontal=0.6
-package.divider.vertical=0.8007380073800738
-package.editor.height=427
-package.editor.width=674
-package.editor.x=40
-package.editor.y=94
-package.frame.height=600
-package.frame.width=800
+objectbench.width=435
+package.divider.horizontal=0.6005434782608695
+package.divider.vertical=0.8
+package.editor.height=425
+package.editor.width=630
+package.editor.x=1044
+package.editor.y=54
+package.frame.height=598
+package.frame.width=756
 package.numDependencies=0
 package.numTargets=1
 package.showExtends=true

package.bluej

@@ -1,18 +1,18 @@
 #BlueJ package file
-editor.fx.0.height=923
-editor.fx.0.width=1036
-editor.fx.0.x=884
-editor.fx.0.y=28
+editor.fx.0.height=960
+editor.fx.0.width=1114
+editor.fx.0.x=58
+editor.fx.0.y=27
 objectbench.height=101
-objectbench.width=461
-package.divider.horizontal=0.6
-package.divider.vertical=0.8007380073800738
-package.editor.height=427
-package.editor.width=674
-package.editor.x=40
-package.editor.y=94
-package.frame.height=600
-package.frame.width=800
+objectbench.width=435
+package.divider.horizontal=0.6005434782608695
+package.divider.vertical=0.8
+package.editor.height=425
+package.editor.width=630
+package.editor.x=1044
+package.editor.y=54
+package.frame.height=598
+package.frame.width=756
 package.numDependencies=0
 package.numTargets=1
 package.showExtends=true