How do I consolidate new account balance?

[ostkanten]

In the following code I can add an amount and I get a new balance, but when I add another amount the balance starts from 0 again. How do I consolidate the account with the added amount?

class SavingAccounts

public class SavingAccounts  {
	
              private Customer person; 
	private static int accountCounter = 1000; 
	protected int accountNumber=1001;
	private double balance; 
	private double interest;
	private final double interestRate=0.5; 
	
	
	public SavingAccounts(){
		
	}
		
	public SavingAccounts (int kontoNummer, double newBalance){
		balance = newBalance;
		accountNumber = accountCounter++;
	}
		
	public void depositAmount (double theAmount){
		balance += theAmount;
	}

	public int getAccountNumber(){
		return accountNumber;
	}
	
	public double getBalance(){
		return balance;
	}
}

class Bank

........

case 2:
System.out.println("Which amount: ");
double amountIn = scanner.nextInt();
SavingAccounts account1 = new SavingAccounts();
	System.out.println("Balance: " + konto1.getBalance());
	account1.depositAmount(amountIn);
	System.out.println("You have deposit " + amountIn + " on account " + accountNumber + ". Balance is now: " + account1.getBalance());
break;
……

[Tolls]

You seem to be creating a new account each time.
Not adding the new amount to an existing account.

[ostkanten]

Aha, that´s the problem!

I think I shall put accountNumber and balance as argument in

SavingAccounts account1 = new SavingAccounts();

but I don´t know how to put the balance there without error. Maybe I can use another constructor?

SavingAccounts account1 = new SavingAccounts(accountNumber);

I have to figure out how to do. Do you have any suggestion?

/Nilla

[Tolls]

You just need to keep hold of your account somewhere.
If it's multiple accounts then you could store them in a Map, keyed by the accountNumber.

[ostkanten]

It works now! I´ll go further to solve other problems.
Thank You!
/Nilla

[kammce]

Aha, that´s the problem!

I think I shall put accountNumber and balance as argument in

SavingAccounts account1 = new SavingAccounts();

but I don´t know how to put the balance there without error. Maybe I can use another constructor?

SavingAccounts account1 = new SavingAccounts(accountNumber);

I have to figure out how to do. Do you have any suggestion?

/Nilla

Well, if you did not already know this, you can have multiple of one constructor, but with different parameters.
Example:

class SavingsAccount {
	SavingsAccount() {
		// ... code code code 01000101010 ... here 
	}
	SavingsAccount(int accountNumber) {
		// ... code code code 01000101010 ... here 
	}
}

But Tolls idea is great as well.