command.java

A bank system

		String lName = commandFactory.nextToken();
		String fName = commandFactory.nextToken();
		String bDate = commandFactory.nextToken();
		String email = commandFactory.nextToken();
		String telNO = commandFactory.nextToken();
			
		//Add new Customer object to the ArrayList
		customerArrayListObject.add(new Customer(cusID,lName,fName,bDate,email,telNO));
		FileProcessing fileProcessingObject = new FileProcessing();
		//Write the ArrayList which has new object of Customer to Customer file.
		fileProcessingObject.writeToFile(customerArrayListObject, Command.customerFileName);
	}
	
	/**
	 * This method do open new saving account.
	 * @param commandFactory			: The entire line of input command.
	 * @param accountArrayListObject	: ArrayList of Account class set after reading from Account file.
	 * @param customerArrayListObject	: ArrayList of Customer class set after reading from Customer file.
	 */
	public void openSavingAccount(	StringTokenizer commandFactory, 
									ArrayList<Account> accountArrayListObject,
									ArrayList<Customer> customerArrayListObject){
		int 	accNO 	= Integer.parseInt(commandFactory.nextToken());
		double 	initAmt = Double.parseDouble(commandFactory.nextToken());
				
		ArrayList<Customer>	cusArrayListObj = new ArrayList<Customer>();
		
		while(commandFactory.hasMoreTokens()){
			int 	customerID 	= Integer.parseInt(commandFactory.nextToken());
			//Add the owner to the ArrayList and then this ArrayList will be sent to the constructor of SavingAccount class
			cusArrayListObj.add(getCustomerObject(customerID,customerArrayListObject));
		}
		//Add new SavingAccount object to the ArrayList
		accountArrayListObject.add(new SavingAccount(accNO,initAmt,initAmt,cusArrayListObj));
		FileProcessing fileProcessingObject = new FileProcessing();
		//Write ArrayList which has new object of SavingAccount class to account file
		fileProcessingObject.writeToFile(accountArrayListObject, Command.accountFileName);
	}
	
	/**
	 * This method do open new credit account.
	 * @param commandFactory			: The entire line of input command.
	 * @param accountArrayListObject	: ArrayList of Account class set after reading from Account file.
	 * @param customerArrayListObject	: ArrayList of Customer class set after reading from Customer file.
	 */
	public void openCreditAccount(	StringTokenizer commandFactory, 
									ArrayList<Account> accountArrayListObject,
									ArrayList<Customer> customerArrayListObject){
		int 	accNO 	= Integer.parseInt(commandFactory.nextToken());
		double 	initAmt = Double.parseDouble(commandFactory.nextToken());
	
		ArrayList<Customer>	cusArrayListObj = new ArrayList<Customer>();
		
		while(commandFactory.hasMoreTokens()){
			int 	customerID 	= Integer.parseInt(commandFactory.nextToken());
			//Add the owner to the ArrayList and then this ArrayList will be sent to the constructor of SavingAccount class
			cusArrayListObj.add(getCustomerObject(customerID,customerArrayListObject));
		}
		//Add new CreditAccount object to the ArrayList
		accountArrayListObject.add(new CreditAccount(accNO,initAmt,cusArrayListObj));
		FileProcessing fileProcessingObject = new FileProcessing();
		//Write ArrayList which has new object of CreditAccount class to account file
		fileProcessingObject.writeToFile(accountArrayListObject, Command.accountFileName);
	}
	
	/**
	 * This method do open new loan account.
	 * @param commandFactory			: The entire line of input command.
	 * @param accountArrayListObject	: ArrayList of Account class set after reading from Account file.
	 * @param customerArrayListObject	: ArrayList of Customer class set after reading from Customer file.
	 */
	public void openLoanAccount(	StringTokenizer commandFactory, 
									ArrayList<Account> accountArrayListObject,
									ArrayList<Customer> customerArrayListObject){
		int 	accNO 	= Integer.parseInt(commandFactory.nextToken());
		double 	initAmt = Double.parseDouble(commandFactory.nextToken());
		double	interest= Double.parseDouble(commandFactory.nextToken());
		double	noOfYear= Double.parseDouble(commandFactory.nextToken());	
		
		ArrayList<Customer>	cusArrayListObj = new ArrayList<Customer>();

		while(commandFactory.hasMoreTokens()){
			int 	customerID 	= Integer.parseInt(commandFactory.nextToken());
			//Add the owner to the ArrayList and then this ArrayList will be sent to the constructor of SavingAccount class
			cusArrayListObj.add(getCustomerObject(customerID,customerArrayListObject));
		}
		//Add new LoanAccount object to the ArrayList
		accountArrayListObject.add(new LoanAccount(accNO, initAmt, interest, noOfYear, cusArrayListObj));
		FileProcessing fileProcessingObject = new FileProcessing();
		//Write ArrayList which has new object of LoanAccount class to account file
		fileProcessingObject.writeToFile(accountArrayListObject, Command.accountFileName);
	}
	
	/**
	 * This method do close the account by setting the status of account object to 'C'
	 * @param commandFactory		: The entire line of input command.
	 * @param accountArrayListObject: ArrayList of Account class set after reading from Account file.
	 */
	public void closeAccount(	StringTokenizer commandFactory, 
								ArrayList<Account> accountArrayListObject)
	{
		int accNO = Integer.parseInt(commandFactory.nextToken());
		
		//Searching the position in the ArrayList of account object
		int searchAccountResult = searchAccount(accNO,accountArrayListObject);
		//Set account status to 'C'
		accountArrayListObject.get(searchAccountResult).setStatus('C');
		//Set account balance amount to 0.00
		accountArrayListObject.get(searchAccountResult).setAccountBalance(0.00);
		FileProcessing fileProcessingObject = new FileProcessing();
		//Write ArrayList which has modified object of Account class to account file
		fileProcessingObject.writeToFile(accountArrayListObject,Command.accountFileName);
	}
	
	/**
	 * This method do deposit operation 
	 * @param commandFactory			: The entire line of input command.
	 * @param accountArrayListObject	: ArrayList of Account class set after reading from Account file.	
	 * @param transactionArrayListObject: ArrayList of Transaction class set after reading from Transaction file.
	 */
	public void depositAccount(	StringTokenizer commandFactory, 
								ArrayList<Account> accountArrayListObject,
								ArrayList<Transaction> transactionArrayListObject){
		int 	accNO 		= Integer.parseInt(commandFactory.nextToken());
		double 	depositAmt 	= Double.parseDouble(commandFactory.nextToken());
	
		//Searching the position in the ArrayList of account object
		int searchAccountResult = searchAccount(accNO,accountArrayListObject);
		accountArrayListObject.get(searchAccountResult).deposit(accNO, depositAmt, transactionArrayListObject);
		
		FileProcessing fileProcessingObject = new FileProcessing();
		//Write ArrayList which has modified object of Account class to account file
		fileProcessingObject.writeToFile(accountArrayListObject,Command.accountFileName);
		fileProcessingObject.writeToFile(transactionArrayListObject, Command.transactionFileName);
	}
	
	/**
	 * This method do withdraw operation 
	 * @param commandFactory			: The entire line of input command.
	 * @param accountArrayListObject	: ArrayList of Account class set after reading from Account file.	
	 * @param transactionArrayListObject: ArrayList of Transaction class set after reading from Transaction file.
	 */
	public void withdrawAccount(StringTokenizer commandFactory, 
								ArrayList<Account> accountArrayListObject,
								ArrayList<Transaction> transactionArrayListObject)
	{
		int accNO = Integer.parseInt(commandFactory.nextToken());
		double 	withdrawAmt = Double.parseDouble(commandFactory.nextToken());
	
		//Searching the position in the ArrayList of account object
		int searchAccountResult = searchAccount(accNO, accountArrayListObject);
		accountArrayListObject.get(searchAccountResult).withdraw(accNO, withdrawAmt, transactionArrayListObject);
		
		FileProcessing fileProcessingObject = new FileProcessing();
		//Write ArrayList which has modified object of Account class to account file
		fileProcessingObject.writeToFile(accountArrayListObject,Command.accountFileName);
		fileProcessingObject.writeToFile(transactionArrayListObject, Command.transactionFileName);
	}
	
	/**
	 * This method do show transaction of account 
	 * @param commandFactory			: The entire line of input command.
	 * @param accountArrayListObject	: ArrayList of Account class set after reading from Account file.	
	 */
	public void accountTransaction(	StringTokenizer commandFactory, 
									ArrayList<Account> accountArrayListObject)
	{
		int accNO = Integer.parseInt(commandFactory.nextToken());
		//Searching the position in the ArrayList of account object
		int searchAccountResult = searchAccount(accNO, accountArrayListObject);
		//Call the transaction method in the Account calss
		accountArrayListObject.get(searchAccountResult).transaction(accNO);
	}
	
	/**
	 * This method do show balance amount of account 
	 * @param commandFactory			: The entire line of input command.
	 * @param accountArrayListObject	: ArrayList of Account class set after reading from Account file.	
	 */
	public void accountBalance(	StringTokenizer commandFactory, 
								ArrayList<Account> accountArrayListObject)
	{
		int accNO = Integer.parseInt(commandFactory.nextToken());
		//Searching the position in the ArrayList of account object
		int searchAccountResult = searchAccount(accNO, accountArrayListObject);
		//Call the balace method in the Account calss
		accountArrayListObject.get(searchAccountResult).balance(accNO);
	}

	/**
	 * This method try to find and return the postion of Customer object by searching through ArrayList of Customer class
	 * @param customerID				: cutomer number or customer id --> four digit number
	 * @param customerArrayListObject	: ArrayList of Customer class set after reading from Customer file.
	 * @return indexOf Customer object in the ArrayList.
	 */
	public Customer getCustomerObject(int customerID, ArrayList<Customer> customerArrayListObject){
		
		for(Customer customer :customerArrayListObject){
			if(customer.getCustomerID() == customerID){
				return customerArrayListObject.get(customerArrayListObject.indexOf(customer));
			}
		}
		return null;
	}
	
	/**
	 * This method try to find and return the position of Account Object by searching through ArrayList of Account class
	 * @param accountNumber			: Account number of Account ID --> seven digit number.
	 * @param accountArrayListObject: ArrayList of Account class set after reading from Account file.	
	 * @return indexOf Account object in the ArrayList.
	 */
	public int searchAccount(	int accountNumber, 
								ArrayList<Account> accountArrayListObject){
		
		for(Account account :accountArrayListObject){
			if(account.getAccountNumber() == accountNumber){
				return accountArrayListObject.indexOf(account);
			}
		}
		
		return -1;
	}
}