diff --git a/README.md b/README.md
index ee11f2c..f94eeb1 100644
--- a/README.md
+++ b/README.md
@@ -13,29 +13,42 @@ There is 35 pages of reading and exercises in the chapter.
Work through all these exercises. You edit this file with your answers for these exercises.
### Exercise 2.1
-* Create a TicketMachine object on the object bench.
+* Create a TicketMachine object on the object bench.
* Upon viewing its methods, `getBalance`, `getPrice`, `insertMoney`, `printTicket`.
* Use `getPrice` method to view the value of the price of the tickets that was set when this object was created.
* Use `insertMoney` method to simulate inserting an amount of money into the machine.
* Use `getBalance` to check that the machine has a record of the amount inserted.
+
* You can insert several separate amounts of money into the machine, just like you might insert multiple coins or notes into a real machine. Try inserting the exact amount required for a ticket. As this is a simple machine, a ticket will not be issued automatically, so once you have inserted enough money, call the `printTicket` method. A facsimile ticket should be printed in the BlueJ terminal window.
### Exercise 2.2
* What value is returned if you check the machine’s balance after it has printed a ticket?
+ * The value returned after printing the ticket ticketMa1.getBalance() returned = 0
+
### Exercise 2.3
* Experiment with inserting different amounts of money before printing tickets.
- * Do you notice anything strange about the machine’s behavior?
- * What happens if you insert too much money into the machine – do you receive any refund?
- * What happens if you do not insert enough and then try to print a ticket?
-
-### Exercise 2.4
+ * Do you notice anything strange about the machine’s behavior?
+
+ * Upon printing the ticket, when checking balance it will show zero. However on the printTicket: String will show ticket price and total inserted.
+
+ * What happens if you insert too much money into the machine – do you receive any refund?
+
+ * Similar to inserting the correct amount, Print ticket will show price and total inserted. No refund at the moment.
+
+ * What happens if you do not insert enough and then try to print a ticket?
+
+ * String for printTicket will show the total inserted and price. Balance will reset to zero.
+
+### Exercise 2.4 - **This is where we start again**
* Try to obtain a good understanding of a ticket machine’s behavior by interacting with it on the object bench before we start looking at how the `TicketMachine` class is implemented in the next section.
### Exercise 2.5
* Create another ticket machine for tickets of a different price.
* Buy a ticket from that machine.
- * Does the printed ticket look different?
+ * Does the printed ticket look different?
+
+ * No, it reminds the same after duplicating the orginial TicketMachine
### Exercise 2.6
* Write out what you think the outer wrappers of the `Student` and `LabClass` classes might look like – do not worry about the inner part.
@@ -43,42 +56,77 @@ Work through all these exercises. You edit this file with your answers for these
### Exercise 2.7
Does it matter whether we write
`public class TicketMachine`
-or
+or
`class public TicketMachine`
in the outer wrapper of a class?
+ * If changed to class public TicketMachine - all the other classes must be changed to match the new class public vs. public class
* Edit the source of the `TicketMachine` class to make the change and then close the editor window.
- * Do you notice a change in the class diagram?
+ * Do you notice a change in the class diagram?
+
+ * The appearance of red/greyed out slash marks are seen on the 'newTicketMachine' class.
+
* What error message do you get when you now press the compile button?
- * Do you think this message clearly explains what is wrong?
+
+ * The source code screen opens up, and the edited line is highlighted, bottom of the screen, an Error(s) found in class is seen.
+
+ * Do you think this message clearly explains what is wrong?
+
+ * Yes, if you hover over the error a message appears for reasons why the error occured.
+
### Exercise 2.8
-* Check whether or not it is possible to leave out the word `public` from the outer wrapper of the `TicketMachine` class.
+* Check whether or not it is possible to leave out the word `public` from the outer wrapper of the `TicketMachine` class.
+
+* It is possible to leave out the word 'public' from the outer wrapping. No error code created when compiled
### Exercise 2.9
* From your earlier experimentation with the ticket machine objects within BlueJ you can probably remember the names of some of the methods – `printTicket`, for instance.
* Look at the class definition in Code 2.1 and use this knowledge, along with the additional information about ordering we have given you, to try to make a list of the names of the fields, constructors, and methods in the `TicketMachine` class.
+
+ * Field - private: Int price; int balance; int total; int tickeNumber
+ * Constructors - price =ticketCost, balance, total, ticketNumber
+ * Methods - return ticketNumber;
+
* Hint: There is only one constructor in the class.
### Exercise 2.10
* Do you notice any features of the constructor that make it significantly different from the other methods of the class?
+* Constructor sets the rules for the price, balance, total, ticketNumber
+
### Exercise 2.11
* What do you think is the type of each of the following fields?
```java
-private int count;
-private Student representative;
-private Server host;
+private int count;
+
+* int
+
+private Student representative;
+
+* Student
+
+private Server host;
+
+* Server
```
### Exercise 2.12
* What are the names of the following fields?
```java
-private boolean alive;
-private Person tutor;
-private Game game;
+private boolean alive;
+
+* boolean alive;
+
+private Person tutor;
+
+* Person tutor;
+
+private Game game;
+
+* Game game
```
### Exercise 2.13
@@ -88,35 +136,55 @@ In the following field declaration from the TicketMachine class
private int price;
```
does it matter which order the three words appear in?
+
+* Yes, Private denotes whether the field will be private to the specific class or to all the class, int is the class designator, and price is the variable.
+
* Edit the `TicketMachine` class to try different orderings. After each change, close the editor.
* Does the appearance of the class diagram after each change give you a clue as to whether or not other orderings are
-possible?
+possible?
+
+* No, Java does not care
+
* Check by pressing the compile button to see if there is an error message.
* Make sure that you reinstantiate the original version after your experiments!
### Exercise 2.14
-* Is it always necessary to have a semicolon at the end of a field declaration?
+* Is it always necessary to have a semicolon at the end of a field declaration?
+
+* Yes, becaus a semicolon denotes in Java an end of the declaration.
+
* Once again, experiment via the editor.
* The rule you will learn here is an important one, so be sure to remember it.
### Exercise 2.15
* Write in full the declaration for a field of type `int` whose name is `status`.
+* private int status
### Exercise 2.16
* To what class does the following constructor belong?
```
public Student(String name)
+
+* Student class
```
### Exercise 2.17
* How many parameters does the following constructor have and what are their types?
```
public Book(String title, double price)
+
+* the parameteers = 2; string title and double price
+
```
### Exercise 2.18
* Can you guess what types some of the `Book` class’s fields might be?
+
+* Private String Author - Private String title
+
* Can you assume anything about the names of its fields?
+
+* it is a private and applicable to the specific scope of the class
READ upto and INCLUDING section 2.15 of this chapter.
diff --git a/bluej.pkg b/bluej.pkg
index bf25784..2c7246d 100644
--- a/bluej.pkg
+++ b/bluej.pkg
@@ -1,32 +1,55 @@
#BlueJ package file
-editor.fx.0.height=722
-editor.fx.0.width=800
-editor.fx.0.x=709
-editor.fx.0.y=113
-objectbench.height=101
-objectbench.width=461
+dependency1.from=TicketMachineTest
+dependency1.to=TicketMachine
+dependency1.type=UsesDependency
+editor.fx.0.height=729
+editor.fx.0.width=861
+editor.fx.0.x=944
+editor.fx.0.y=-890
+objectbench.height=100
+objectbench.width=776
package.divider.horizontal=0.6
-package.divider.vertical=0.8007380073800738
-package.editor.height=427
-package.editor.width=674
-package.editor.x=1067
-package.editor.y=119
+package.divider.vertical=0.8003731343283582
+package.editor.height=422
+package.editor.width=683
+package.editor.x=1044
+package.editor.y=0
package.frame.height=600
package.frame.width=800
-package.numDependencies=0
-package.numTargets=1
+package.numDependencies=1
+package.numTargets=4
package.showExtends=true
package.showUses=true
project.charset=UTF-8
-readme.height=58
+readme.height=60
readme.name=@README
-readme.width=47
+readme.width=48
readme.x=10
readme.y=10
-target1.height=50
-target1.name=TicketMachine
+target1.height=70
+target1.name=TicketMachineTest
target1.showInterface=false
-target1.type=ClassTarget
-target1.width=120
-target1.x=80
-target1.y=50
+target1.type=UnitTestTargetJunit4
+target1.width=130
+target1.x=140
+target1.y=110
+target2.height=50
+target2.name=TicketMachine
+target2.showInterface=false
+target2.type=ClassTarget
+target2.width=120
+target2.x=80
+target2.y=50
+target3.height=70
+target3.name=newTicketMachine
+target3.showInterface=false
+target3.type=ClassTarget
+target3.width=160
+target3.x=380
+target3.y=70
+target4.height=70
+target4.name=README.md
+target4.type=TextTarget
+target4.width=120
+target4.x=10
+target4.y=110
diff --git a/newTicketMachine.java b/newTicketMachine.java
new file mode 100644
index 0000000..1add568
--- /dev/null
+++ b/newTicketMachine.java
@@ -0,0 +1,100 @@
+/**
+ * newTicketMachine models a naive ticket machine that issues
+ * flat-fare tickets.
+ * The price of a ticket is specified via the constructor.
+ * It is a naive machine in the sense that it trusts its users
+ * to insert enough money before trying to print a ticket.
+ * It also assumes that users enter sensible amounts.
+ *
+ * @author David J. Barnes and Michael Kolling
+ * @version 2008.03.30
+ */
+public class newTicketMachine
+{
+ // The price of a ticket from this machine.
+ private Integer price;
+ // The amount of money entered by a customer so far.
+ private Integer balance;
+ // The total amount of money collected by this machine.
+ private Integer total;
+ // The number of tickets printed.
+ private Integer ticketNumber;
+
+ /**
+ * Create a machine that issues tickets of the given price.
+ * Note that the price must be greater than zero, and there
+ * are no checks to ensure this.
+ */
+ public newTicketMachine(Integer ticketCost)
+ {
+ price = ticketCost;
+ balance = 0;
+ total = 0;
+ ticketNumber = 0;
+ }
+
+ /**
+ * Return the price of a ticket.
+ */
+ public Integer getPrice()
+ {
+ return price;
+ }
+
+ /**
+ * Return ticketNumber.
+ * (Increments on each print.)
+ */
+ public Integer getTicketNumber()
+ {
+ return ticketNumber;
+ }
+
+
+
+ /**
+ * Return the amount of money already inserted for the
+ * next ticket.
+ */
+ public Integer getBalance()
+ {
+ return balance;
+ }
+
+ /**
+ * Receive an amount of money in cents from a customer.
+ */
+ public Integer insertMoney(Integer amount)
+ {
+ balance = balance + amount;
+ return balance;
+ }
+
+ public Integer calculateTotal(){
+ total = balance + total;
+ return total;
+ }
+
+ public Integer incrementTicketNumber(){
+ ticketNumber++;
+ return ticketNumber;
+ }
+
+
+ /**
+ * Print a ticket.
+ * Update the total collected and
+ * reduce the balance to zero.
+ */
+ public String printTicket()
+ {
+ //Increment the number of tickets printed
+ incrementTicketNumber();
+ // Update the total collected with the balance.
+ total = total + balance;
+ // Clear the balance.
+ balance = 0;
+
+ return "Ticket price: " + price + " cents. " + "Your total is " + total + ".";
+ }
+}
diff --git a/package.bluej b/package.bluej
index bf25784..2c7246d 100644
--- a/package.bluej
+++ b/package.bluej
@@ -1,32 +1,55 @@
#BlueJ package file
-editor.fx.0.height=722
-editor.fx.0.width=800
-editor.fx.0.x=709
-editor.fx.0.y=113
-objectbench.height=101
-objectbench.width=461
+dependency1.from=TicketMachineTest
+dependency1.to=TicketMachine
+dependency1.type=UsesDependency
+editor.fx.0.height=729
+editor.fx.0.width=861
+editor.fx.0.x=944
+editor.fx.0.y=-890
+objectbench.height=100
+objectbench.width=776
package.divider.horizontal=0.6
-package.divider.vertical=0.8007380073800738
-package.editor.height=427
-package.editor.width=674
-package.editor.x=1067
-package.editor.y=119
+package.divider.vertical=0.8003731343283582
+package.editor.height=422
+package.editor.width=683
+package.editor.x=1044
+package.editor.y=0
package.frame.height=600
package.frame.width=800
-package.numDependencies=0
-package.numTargets=1
+package.numDependencies=1
+package.numTargets=4
package.showExtends=true
package.showUses=true
project.charset=UTF-8
-readme.height=58
+readme.height=60
readme.name=@README
-readme.width=47
+readme.width=48
readme.x=10
readme.y=10
-target1.height=50
-target1.name=TicketMachine
+target1.height=70
+target1.name=TicketMachineTest
target1.showInterface=false
-target1.type=ClassTarget
-target1.width=120
-target1.x=80
-target1.y=50
+target1.type=UnitTestTargetJunit4
+target1.width=130
+target1.x=140
+target1.y=110
+target2.height=50
+target2.name=TicketMachine
+target2.showInterface=false
+target2.type=ClassTarget
+target2.width=120
+target2.x=80
+target2.y=50
+target3.height=70
+target3.name=newTicketMachine
+target3.showInterface=false
+target3.type=ClassTarget
+target3.width=160
+target3.x=380
+target3.y=70
+target4.height=70
+target4.name=README.md
+target4.type=TextTarget
+target4.width=120
+target4.x=10
+target4.y=110