morecode

README.md

@@ -18,27 +18,38 @@ 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 balance would always be zero
+* 
+* 
 
 ### 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 print ticket method dosent check if enough money has been inserted
+    * 
+    * What happens if you insert too much money into the machine – do you receive any refund?
+    * print thicket always recets the balance to zero, even if the amount is higher
+    * 
+    * What happens if you do not insert enough and then try to print a ticket?
+    * you can still create with negative numbers
+    * 
 
 ### 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?
+    * yes
 
 ### 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
 
 ### Exercise 2.7
 Does it matter whether we write<br>
@@ -47,18 +58,28 @@ or<br>
 `class public TicketMachine`<br>
 in the outer wrapper of a class?
 
+yes
+
+
 * 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?
+    * What error message do you get when you now press the compile button?
+    * identifier expected 
+    * 
+    * Do you think this message clearly explains what is wrong? 
+    * no but is shows where the problem is 
+    * 
 
 ### Exercise 2.8
 * Check whether or not it is possible to leave out the word `public` from the outer wrapper of the `TicketMachine` class.
+* 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.
+    * yes it is posible 
+    * 
 
 ### Exercise 2.10
 * Do you notice any features of the constructor that make it significantly different from the other methods of the class?
@@ -67,18 +88,18 @@ in the outer wrapper of a class?
 * 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; integer 
+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; alive 
+private Person tutor;  tutor 
+private Game game; game
 ```
 ### Exercise 2.13
 
@@ -89,28 +110,32 @@ private int price;
 ```
 does it matter which order the three words appear in?
 * 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
+    * 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!
+    * 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?
+* yes 
 * 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?
+* Student 
 ```
 public Student(String name)
 ```
 
 ### Exercise 2.17
 * How many parameters does the following constructor have and what are their types?
+* 2, Sting and double 
 ```
 public Book(String title, double price)
 ```