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50 changes: 25 additions & 25 deletions
50
pps-lab01-intellij-basic-example/src/lab01/example/Main.java
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| package lab01.example; | ||
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| import lab01.example.model.AccountHolder; | ||
| import lab01.example.model.BankAccount; | ||
| import lab01.example.model.SimpleBankAccount; | ||
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| public class Main { | ||
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| public static void main(String[] args) { | ||
| final AccountHolder accountHolder = new AccountHolder("Mario", "Rossi", 1); | ||
| final BankAccount bankAccount = new SimpleBankAccount(accountHolder, 0); | ||
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| bankAccount.deposit(accountHolder.getId(), 100); | ||
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| System.out.println("Current balance is " + bankAccount.getBalance()); | ||
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| bankAccount.withdraw(accountHolder.getId(), 30); | ||
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| System.out.println("Current balance is " + bankAccount.getBalance()); | ||
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| bankAccount.withdraw(accountHolder.getId(), 80); | ||
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| System.out.println("Current balance is " + bankAccount.getBalance()); | ||
| } | ||
| } | ||
| package lab01.example; | ||
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| import lab01.example.model.AccountHolder; | ||
| import lab01.example.model.BankAccount; | ||
| import lab01.example.model.SimpleBankAccount; | ||
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| public class Main { | ||
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| public static void main(String[] args) { | ||
| final AccountHolder accountHolder = new AccountHolder("Mario", "Rossi", 1); | ||
| final BankAccount bankAccount = new SimpleBankAccount(accountHolder, 0); | ||
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| bankAccount.deposit(accountHolder.getId(), 100); | ||
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| System.out.println("Current balance is " + bankAccount.getBalance()); | ||
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| bankAccount.withdraw(accountHolder.getId(), 30); | ||
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| System.out.println("Current balance is " + bankAccount.getBalance()); | ||
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| bankAccount.withdraw(accountHolder.getId(), 80); | ||
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| System.out.println("Current balance is " + bankAccount.getBalance()); | ||
| } | ||
| } |
102 changes: 51 additions & 51 deletions
102
pps-lab01-intellij-basic-example/src/lab01/example/model/AccountHolder.java
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|---|---|---|
| @@ -1,51 +1,51 @@ | ||
| package lab01.example.model; | ||
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| /** | ||
| * This class represents the account holder concept. | ||
| * That is: a person that can subscribe a bank account. | ||
| * | ||
| * Each account holder has a name, a surname and an ID (unique in the bank system) | ||
| */ | ||
| public class AccountHolder { | ||
| private final int id; | ||
| private final String name; | ||
| private final String surname; | ||
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| public AccountHolder(final String name, final String surname, final int id) { | ||
| this.name = name; | ||
| this.surname = surname; | ||
| this.id = id; | ||
| } | ||
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| /** | ||
| * Retrieve the name of the the person registered as possible account holder | ||
| * @return the name of the holder | ||
| */ | ||
| public String getName() { | ||
| return this.name; | ||
| } | ||
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| /** | ||
| * Retrieve the surname of the person registered as possible account holder | ||
| * @return the surname of the holder | ||
| */ | ||
| public String getSurname() { | ||
| return this.surname; | ||
| } | ||
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| /** | ||
| * Retrieve the ID of the person registered as possible account holder | ||
| * @return the id of the holder | ||
| */ | ||
| public int getId() { | ||
| return this.id; | ||
| } | ||
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| /** | ||
| * Provides a string representation | ||
| * @return the string representation for an AccountHolder instance | ||
| */ | ||
| public String toString() { | ||
| return String.format("[ID = %d] %s %s", this.id, this.name, this.surname); | ||
| } | ||
| } | ||
| package lab01.example.model; | ||
|
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| /** | ||
| * This class represents the account holder concept. | ||
| * That is: a person that can subscribe a bank account. | ||
| * | ||
| * Each account holder has a name, a surname and an ID (unique in the bank system) | ||
| */ | ||
| public class AccountHolder { | ||
| private final int id; | ||
| private final String name; | ||
| private final String surname; | ||
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| public AccountHolder(final String name, final String surname, final int id) { | ||
| this.name = name; | ||
| this.surname = surname; | ||
| this.id = id; | ||
| } | ||
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| /** | ||
| * Retrieve the name of the the person registered as possible account holder | ||
| * @return the name of the holder | ||
| */ | ||
| public String getName() { | ||
| return this.name; | ||
| } | ||
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| /** | ||
| * Retrieve the surname of the person registered as possible account holder | ||
| * @return the surname of the holder | ||
| */ | ||
| public String getSurname() { | ||
| return this.surname; | ||
| } | ||
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| /** | ||
| * Retrieve the ID of the person registered as possible account holder | ||
| * @return the id of the holder | ||
| */ | ||
| public int getId() { | ||
| return this.id; | ||
| } | ||
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| /** | ||
| * Provides a string representation | ||
| * @return the string representation for an AccountHolder instance | ||
| */ | ||
| public String toString() { | ||
| return String.format("[ID = %d] %s %s", this.id, this.name, this.surname); | ||
| } | ||
| } |
74 changes: 37 additions & 37 deletions
74
pps-lab01-intellij-basic-example/src/lab01/example/model/BankAccount.java
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|---|---|---|
| @@ -1,37 +1,37 @@ | ||
| package lab01.example.model; | ||
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| /** | ||
| * This interface defines the concept of a very basic bank account. | ||
| */ | ||
| public interface BankAccount { | ||
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| /** | ||
| * Allows to know who is the holder of this bank account | ||
| * @return the AccountHolder instance related to this bank account. | ||
| */ | ||
| AccountHolder getHolder(); | ||
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| /** | ||
| * Returns the current balance of the bank account | ||
| * @return the current balance | ||
| */ | ||
| double getBalance(); | ||
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| /** | ||
| * Allows the deposit of an amount on the account, if the given usrID corresponds to the register holder ID | ||
| * of the bank account. This ID acts like an "identification token" . | ||
| * | ||
| * @param usrID the id of the user that wants do the deposit | ||
| * @param amount the amount of the deposit | ||
| */ | ||
| void deposit(int usrID, double amount); | ||
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| /** | ||
| * Allows the withdraw of an amount from the account, if the given usrID corresponds to the register holder ID | ||
| * of the bank account. This ID acts like an "identification token" . | ||
| * | ||
| * @param usrID the id of the user that wants do the withdraw | ||
| * @param amount the amount of the withdraw | ||
| */ | ||
| void withdraw(int usrID, double amount); | ||
| } | ||
| package lab01.example.model; | ||
|
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| /** | ||
| * This interface defines the concept of a very basic bank account. | ||
| */ | ||
| public interface BankAccount { | ||
|
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| /** | ||
| * Allows to know who is the holder of this bank account | ||
| * @return the AccountHolder instance related to this bank account. | ||
| */ | ||
| AccountHolder getHolder(); | ||
|
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| /** | ||
| * Returns the current balance of the bank account | ||
| * @return the current balance | ||
| */ | ||
| double getBalance(); | ||
|
|
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| /** | ||
| * Allows the deposit of an amount on the account, if the given usrID corresponds to the register holder ID | ||
| * of the bank account. This ID acts like an "identification token" . | ||
| * | ||
| * @param usrID the id of the user that wants do the deposit | ||
| * @param amount the amount of the deposit | ||
| */ | ||
| void deposit(int usrID, double amount); | ||
|
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| /** | ||
| * Allows the withdraw of an amount from the account, if the given usrID corresponds to the register holder ID | ||
| * of the bank account. This ID acts like an "identification token" . | ||
| * | ||
| * @param usrID the id of the user that wants do the withdraw | ||
| * @param amount the amount of the withdraw | ||
| */ | ||
| void withdraw(int usrID, double amount); | ||
| } |
96 changes: 48 additions & 48 deletions
96
pps-lab01-intellij-basic-example/src/lab01/example/model/SimpleBankAccount.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,48 +1,48 @@ | ||
| package lab01.example.model; | ||
|
|
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| /** | ||
| * This class represent a particular instance of a BankAccount. | ||
| * In particular, a Simple Bank Account allows always the deposit | ||
| * while the withdraw is allowed only if the balance greater or equal the withdrawal amount | ||
| */ | ||
| public class SimpleBankAccount implements BankAccount { | ||
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| private double balance; | ||
| private final AccountHolder holder; | ||
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| public SimpleBankAccount(final AccountHolder holder, final double balance) { | ||
| this.holder = holder; | ||
| this.balance = balance; | ||
| } | ||
| @Override | ||
| public AccountHolder getHolder(){ | ||
| return this.holder; | ||
| } | ||
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| @Override | ||
| public double getBalance() { | ||
| return this.balance; | ||
| } | ||
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| @Override | ||
| public void deposit(final int usrID, final double amount) { | ||
| if (checkUser(usrID)) { | ||
| this.balance += amount; | ||
| } | ||
| } | ||
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| @Override | ||
| public void withdraw(final int usrID, final double amount) { | ||
| if (checkUser(usrID) && isWithdrawAllowed(amount)) { | ||
| this.balance -= amount; | ||
| } | ||
| } | ||
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| private boolean isWithdrawAllowed(final double amount){ | ||
| return this.balance >= amount; | ||
| } | ||
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| private boolean checkUser(final int id) { | ||
| return this.holder.getId() == id; | ||
| } | ||
| } | ||
| package lab01.example.model; | ||
|
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| /** | ||
| * This class represent a particular instance of a BankAccount. | ||
| * In particular, a Simple Bank Account allows always the deposit | ||
| * while the withdraw is allowed only if the balance greater or equal the withdrawal amount | ||
| */ | ||
| public class SimpleBankAccount implements BankAccount { | ||
|
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| private double balance; | ||
| private final AccountHolder holder; | ||
|
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| public SimpleBankAccount(final AccountHolder holder, final double balance) { | ||
| this.holder = holder; | ||
| this.balance = balance; | ||
| } | ||
| @Override | ||
| public AccountHolder getHolder(){ | ||
| return this.holder; | ||
| } | ||
|
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| @Override | ||
| public double getBalance() { | ||
| return this.balance; | ||
| } | ||
|
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| @Override | ||
| public void deposit(final int usrID, final double amount) { | ||
| if (checkUser(usrID)) { | ||
| this.balance += amount; | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void withdraw(final int usrID, final double amount) { | ||
| if (checkUser(usrID) && isWithdrawAllowed(amount)) { | ||
| this.balance -= amount; | ||
| } | ||
| } | ||
|
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| private boolean isWithdrawAllowed(final double amount){ | ||
| return this.balance >= amount; | ||
| } | ||
|
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| private boolean checkUser(final int id) { | ||
| return this.holder.getId() == id; | ||
| } | ||
| } |
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