Lab3

.gitignore

@@ -0,0 +1,24 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*

componenti.txt

@@ -0,0 +1,4 @@
+Thomas Ghione 5254284
+Simone Tomasella 5311626
+
+Abbiamo avuto un merge conflict da feature a main, ma non siamo sicuri sia evidente nel DAG, se vuole possiamo mostrarglielo direttamente a lezione se lo ritiene necessario

src/ATMCaseStudy.java → src/code/Business_Logic/ATMCaseStudy.java

@@ -1,3 +1,6 @@
+package code.Business_Logic;
+
+import code.GUI.ATM;
 // ATMCaseStudy.java
 // Driver program for the ATM case study
 

src/CashDispenser.java → src/code/Business_Logic/CashDispenser.java

@@ -1,3 +1,4 @@
+package code.Business_Logic;
 // CashDispenser.java
 // Represents the cash dispenser of the ATM
 

src/DepositSlot.java → src/code/Business_Logic/DepositSlot.java

@@ -1,3 +1,4 @@
+package code.Business_Logic;
 // DepositSlot.java
 // Represents the deposit slot of the ATM
 

src/Transaction.java → src/code/Business_Logic/Transaction.java

@@ -1,6 +1,10 @@
+package code.Business_Logic;
 // Transaction.java
 // Abstract superclass Transaction represents an ATM transaction
 
+import code.Database.BankDatabase;
+import code.GUI.Screen;
+
 public abstract class Transaction
 {
    private int accountNumber; // indicates account involved

src/Account.java → src/code/Database/Account.java

@@ -1,16 +1,17 @@
+package code.Database;
 // Account.java
 // Represents a bank account
 
 public class Account 
 {
    private int accountNumber; // account number
    private int pin; // PIN for authentication
-   private double availableBalance; // funds available for withdrawal
-   private double totalBalance; // funds available + pending deposits
+   private Euro availableBalance; // funds available for withdrawal
+   private Euro totalBalance; // funds available + pending deposits
 
    // Account constructor initializes attributes
    public Account( int theAccountNumber, int thePIN, 
-      double theAvailableBalance, double theTotalBalance )
+      Euro theAvailableBalance, Euro theTotalBalance )
    {
       accountNumber = theAccountNumber;
       pin = thePIN;
@@ -28,28 +29,28 @@ public boolean validatePIN( int userPIN )
    } // end method validatePIN
 
    // returns available balance
-   public double getAvailableBalance()
+   public Euro getAvailableBalance()
    {
       return availableBalance;
    } // end getAvailableBalance
 
    // returns the total balance
-   public double getTotalBalance()
+   public Euro getTotalBalance()
    {
       return totalBalance;
    } // end method getTotalBalance
 
    // credits an amount to the account
-   public void credit( double amount )
+   public void credit( Euro amount )
    {
-      totalBalance += amount; // add to total balance
+      totalBalance.somma(amount); // add to total balance
    } // end method credit
 
    // debits an amount from the account
-   public void debit( double amount )
+   public void debit( Euro amount )
    {
-      availableBalance -= amount; // subtract from available balance
-      totalBalance -= amount; // subtract from total balance
+      availableBalance.sottrai(amount); // subtract from available balance
+      totalBalance.sottrai(amount); // subtract from total balance
    } // end method debit
 
    // returns account number

src/BankDatabase.java → src/code/Database/BankDatabase.java

@@ -1,3 +1,4 @@
+package code.Database;
 // BankDatabase.java
 // Represents the bank account information database 
 
@@ -9,12 +10,12 @@ public class BankDatabase
    public BankDatabase()
    {
       accounts = new Account[ 2 ]; // just 2 accounts for testing
-      accounts[ 0 ] = new Account( 12345, 54321, 1000.0, 1200.0 );
-      accounts[ 1 ] = new Account( 98765, 56789, 200.0, 200.0 );  
+      accounts[ 0 ] = new Account( 12345, 54321, new Euro(1000.0), new Euro(1200.0 ) );
+      accounts[ 1 ] = new Account( 98765, 56789, new Euro(200.0), new Euro(200.0 ) );  
    } // end no-argument BankDatabase constructor
 
    // retrieve Account object containing specified account number
-   private Account getAccount( int accountNumber )
+   public Account getAccount( int accountNumber )
    {
       // loop through accounts searching for matching account number
       for ( Account currentAccount : accounts )
@@ -42,25 +43,25 @@ public boolean authenticateUser( int userAccountNumber, int userPIN )
    } // end method authenticateUser
 
    // return available balance of Account with specified account number
-   public double getAvailableBalance( int userAccountNumber )
+   public Euro getAvailableBalance( int userAccountNumber )
    {
       return getAccount( userAccountNumber ).getAvailableBalance();
    } // end method getAvailableBalance
 
    // return total balance of Account with specified account number
-   public double getTotalBalance( int userAccountNumber )
+   public Euro getTotalBalance( int userAccountNumber )
    {
       return getAccount( userAccountNumber ).getTotalBalance();
    } // end method getTotalBalance
 
    // credit an amount to Account with specified account number
-   public void credit( int userAccountNumber, double amount )
+   public void credit( int userAccountNumber, Euro amount )
    {
       getAccount( userAccountNumber ).credit( amount );
    } // end method credit
 
    // debit an amount from of Account with specified account number
-   public void debit( int userAccountNumber, double amount )
+   public void debit( int userAccountNumber, Euro amount )
    {
       getAccount( userAccountNumber ).debit( amount );
    } // end method debit

src/code/Database/Euro.java

@@ -0,0 +1,48 @@
+package code.Database;
+
+public class Euro {
+
+	private long valore;
+
+	public Euro(long euro, long cent) {
+		if (euro >= 0) {
+			valore = euro*100 + cent;
+		} else {
+			valore = euro*100 - cent;
+		}
+	}
+
+	public Euro(double d) {
+		valore = (long)(d*100);
+	}
+
+	public long getValore() {
+		return valore;
+	}
+
+	public Euro somma(Euro e) {
+		this.valore = this.valore + e.getValore();
+		return this;
+	}
+
+	public Euro sottrai(Euro e) {
+		this.valore = this.valore - e.getValore();
+		return this;
+	}
+
+	public boolean ugualeA(Euro e){
+		if (valore == e.getValore())
+			return true;
+		else return false;
+	}
+
+	public boolean minoreDi(Euro e){
+		if (valore <= e.getValore())
+			return true;
+		else return false;
+	}
+
+	public String stampa(){
+		return (double)valore/100 +" euro";
+	}
+}

src/ATM.java → src/code/GUI/ATM.java

@@ -1,6 +1,12 @@
+package code.GUI;
 // ATM.java
 // Represents an automated teller machine
 
+import code.Business_Logic.CashDispenser;
+import code.Business_Logic.DepositSlot;
+import code.Business_Logic.Transaction;
+import code.Database.BankDatabase;
+
 public class ATM 
 {
    private boolean userAuthenticated; // whether user is authenticated

src/BalanceInquiry.java → src/code/GUI/BalanceInquiry.java

@@ -1,6 +1,11 @@
+package code.GUI;
 // BalanceInquiry.java
 // Represents a balance inquiry ATM transaction
 
+import code.Business_Logic.Transaction;
+import code.Database.BankDatabase;
+import code.Database.Euro;
+
 public class BalanceInquiry extends Transaction
 {
    // BalanceInquiry constructor
@@ -18,11 +23,11 @@ public void execute()
       Screen screen = getScreen();
 
       // get the available balance for the account involved
-      double availableBalance = 
+      Euro availableBalance = 
          bankDatabase.getAvailableBalance( getAccountNumber() );
 
       // get the total balance for the account involved
-      double totalBalance = 
+      Euro totalBalance = 
          bankDatabase.getTotalBalance( getAccountNumber() );
 
       // display the balance information on the screen

src/Deposit.java → src/code/GUI/Deposit.java

@@ -1,9 +1,15 @@
+package code.GUI;
 // Deposit.java
 // Represents a deposit ATM transaction
 
+import code.Business_Logic.DepositSlot;
+import code.Business_Logic.Transaction;
+import code.Database.BankDatabase;
+import code.Database.Euro;
+
 public class Deposit extends Transaction
 {
-   private double amount; // amount to deposit
+   private Euro amount; // amount to deposit
    private Keypad keypad; // reference to keypad
    private DepositSlot depositSlot; // reference to deposit slot
    private final static int CANCELED = 0; // constant for cancel option
@@ -30,7 +36,7 @@ public void execute()
       amount = promptForDepositAmount(); // get deposit amount from user
 
       // check whether user entered a deposit amount or canceled
-      if ( amount != CANCELED )
+      if ( amount.getValore() != CANCELED )
       {
          // request deposit envelope containing specified amount
          screen.displayMessage( 
@@ -65,7 +71,7 @@ public void execute()
    } // end method execute
 
    // prompt user to enter a deposit amount in cents 
-   private double promptForDepositAmount()
+   private Euro promptForDepositAmount()
    {
       Screen screen = getScreen(); // get reference to screen
 
@@ -76,10 +82,10 @@ private double promptForDepositAmount()
 
       // check whether the user canceled or entered a valid amount
       if ( input == CANCELED ) 
-         return CANCELED;
+         return new Euro(0);
       else
       {
-         return ( double ) input / 100; // return dollar amount 
+         return new Euro(input / 100); // return dollar amount 
       } // end else
    } // end method promptForDepositAmount
 } // end class Deposit

src/Keypad.java → src/code/GUI/Keypad.java

@@ -1,3 +1,4 @@
+package code.GUI;
 // Keypad.java
 // Represents the keypad of the ATM
 import java.util.Scanner; // program uses Scanner to obtain user input

src/Screen.java → src/code/GUI/Screen.java

@@ -1,6 +1,9 @@
+package code.GUI;
 // Screen.java
 // Represents the screen of the ATM
 
+import code.Database.Euro;
+
 public class Screen
 {
    // displays a message without a carriage return
@@ -16,9 +19,9 @@ public void displayMessageLine( String message )
    } // end method displayMessageLine
 
    // display a dollar amount
-   public void displayDollarAmount( double amount )
+   public void displayDollarAmount( Euro amount )
    {
-      System.out.printf( "$%,.2f", amount );   
+      System.out.printf( amount.stampa() );   
    } // end method displayDollarAmount 
 } // end class Screen
 

src/Withdrawal.java → src/code/GUI/Withdrawal.java

@@ -1,6 +1,12 @@
+package code.GUI;
 // Withdrawal.java
 // Represents a withdrawal ATM transaction
 
+import code.Business_Logic.CashDispenser;
+import code.Business_Logic.Transaction;
+import code.Database.BankDatabase;
+import code.Database.Euro;
+
 public class Withdrawal extends Transaction
 {
    private int amount; // amount to withdraw
@@ -27,7 +33,7 @@ public Withdrawal( int userAccountNumber, Screen atmScreen,
    public void execute()
    {
       boolean cashDispensed = false; // cash was not dispensed yet
-      double availableBalance; // amount available for withdrawal
+      Euro availableBalance; // amount available for withdrawal
 
       // get references to bank database and screen
       BankDatabase bankDatabase = getBankDatabase(); 
@@ -47,13 +53,13 @@ public void execute()
                bankDatabase.getAvailableBalance( getAccountNumber() );
 
             // check whether the user has enough money in the account 
-            if ( amount <= availableBalance )
+            if ( amount <= availableBalance.getValore() )
             {   
                // check whether the cash dispenser has enough money
                if ( cashDispenser.isSufficientCashAvailable( amount ) )
                {
                   // update the account involved to reflect withdrawal
-                  bankDatabase.debit( getAccountNumber(), amount );
+                  bankDatabase.debit( getAccountNumber(), new Euro(amount) );
 
                   cashDispenser.dispenseCash( amount ); // dispense cash
                   cashDispensed = true; // cash was dispensed