BlueJ.NaiveTicket Lab

README.md

@@ -18,67 +18,84 @@ Work through all these exercises. You edit this file with your answers for these
 * 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.
+    * 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 the ticket has been printed is 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?
+    * Do you notice anything strange about the machine’s behavior? 
+    ***  // The machine acts the same no matter the input.
+    * What happens if you insert too much money into the machine – do you receive any refund?
+    *** // We do not receive any refund if too much money is inserted into the machine.
+    * What happens if you do not insert enough and then try to print a ticket? 
+    ***  // If we do not instert enough money the ticket prints out with the ticket price and the total amount of money inserted.
+    ***  // the behavior of the ticket machine does not change.
 
 ### Exercise 2.4
 * 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?
+    * Buy a ticket from that machine.
+    * Does the printed ticket look different?
+    ***  // It looks the same with the new price and the new total of money insterted.
 
 ### 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.
+*** // public class Student {...}
+*** // public class LabClass {...}
 
 ### Exercise 2.7
 Does it matter whether we write<br>
 `public class TicketMachine`<br>
 or<br>
 `class public TicketMachine`<br>
 in the outer wrapper of a class?
+* // Yes it matters what order it is written.
 
 * 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?
-	* What error message do you get when you now press the compile button?
-	* Do you think this message clearly explains what is wrong?
+    * Do you notice a change in the class diagram? 
+    *** // Yes, TicketMachine is crossed out with hashes, meaning it cannot be compiled succesfully.
+    * What error message do you get when you now press the compile button? 
+    *** // the error message from making this change says "identifier expected".
+    * Do you think this message clearly explains what is wrong?
+    *** // I do not think that this clearly explains what is wrong.
 
 ### Exercise 2.8
 * Check whether or not it is possible to leave out the word `public` from the outer wrapper of the `TicketMachine` class.
+*** // Yes, it is possible.
 
 ### 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.
-	* Hint: There is only one constructor in the class.
+    * 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.
+    * Hint: There is only one constructor in the class.
+    **** // Fields : price, balance, total, ticketNumber
+    *** // Contructors : TicketMachine()
+    *** // Methods : getPrice(), getTicketNumber(), getBalance(), insertMoney(), calculateTotal(), incrementTicketNumber(), printTicket()
 
 ### Exercise 2.10
 * Do you notice any features of the constructor that make it significantly different from the other methods of the class?
+* // The name of the constructor is the same as the class.
 
 ### 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; // type Integer 
+private Student representative; // type String or non primitive object
+private Server host; // type String or non primitive object
 ```
 
 ### Exercise 2.12
 * What are the names of the following fields?
 
 ```java
-private boolean alive;
-private Person tutor;
-private Game game;
+private boolean alive; // field name is "alive"
+private Person tutor; // field name is "tutor"
+private Game game; // field name is "game"
 ```
 ### Exercise 2.13
 
@@ -87,36 +104,46 @@ In the following field declaration from the TicketMachine class<br>
 ```java
 private int price;
 ```
-does it matter which order the three words appear in?
+does it matter which order the three words appear in? // Yes the order matters
 * 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?
-	* 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!
+    * Does the appearance of the class diagram after each change give you a clue as to whether or not other orderings are
+possible? 
+*** // Yes it does, the field "price" needs to have it's "data type" defined first.
+*** // It does not allow for compilation since the oder is not formated correctly. side-note; "private" can be removed
+    * 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, semicolons are always necessary, otherwise the code will give an error everytime.
+*** // A semicolon at the end of a field declaration tells Java not to add on anything else.
 * 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)
 ```
+*** // the constructor belongs to the "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 contructor has 2 parameters. 
+*** // title is a type String, price is a type double.
 
 ### Exercise 2.18
 * Can you guess what types some of the `Book` class’s fields might be?
+*** // Fields: String - Title, double - Price, String - Cover(hardcover/paperback), Integer - Page numbers, String - Genre.
 * Can you assume anything about the names of its fields?
+*** // Yes, you can assume that the names of its fields may relate to the parameters that may be in the contructor.
 
 READ upto and INCLUDING section 2.15 of this chapter.

bluej.pkg

@@ -1,32 +1,52 @@
 #BlueJ package file
-editor.fx.0.height=722
-editor.fx.0.width=800
-editor.fx.0.x=709
-editor.fx.0.y=113
+dependency1.from=TicketMachineTest
+dependency1.to=TicketMachine
+dependency1.type=UsesDependency
+editor.fx.0.height=1057
+editor.fx.0.width=1056
+editor.fx.0.x=0
+editor.fx.0.y=23
+editor.fx.1.height=722
+editor.fx.1.width=800
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 objectbench.height=101
 objectbench.width=461
 package.divider.horizontal=0.6
 package.divider.vertical=0.8007380073800738
 package.editor.height=427
-package.editor.width=674
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-package.editor.y=119
+package.editor.width=682
+package.editor.x=1138
+package.editor.y=94
 package.frame.height=600
 package.frame.width=800
-package.numDependencies=0
-package.numTargets=1
+package.numDependencies=1
+package.numTargets=3
 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=200
+target1.y=110
+target2.height=50
+target2.name=TicketMachine
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package.bluej

@@ -1,32 +1,52 @@
 #BlueJ package file
-editor.fx.0.height=722
-editor.fx.0.width=800
-editor.fx.0.x=709
-editor.fx.0.y=113
+dependency1.from=TicketMachineTest
+dependency1.to=TicketMachine
+dependency1.type=UsesDependency
+editor.fx.0.height=1057
+editor.fx.0.width=1056
+editor.fx.0.x=0
+editor.fx.0.y=23
+editor.fx.1.height=722
+editor.fx.1.width=800
+editor.fx.1.x=1062
+editor.fx.1.y=23
 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=1067
-package.editor.y=119
+package.editor.width=682
+package.editor.x=1138
+package.editor.y=94
 package.frame.height=600
 package.frame.width=800
-package.numDependencies=0
-package.numTargets=1
+package.numDependencies=1
+package.numTargets=3
 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=200
+target1.y=110
+target2.height=50
+target2.name=TicketMachine
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+target2.type=ClassTarget
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