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I'm new to programming. When I compile this program, I get this error
message:
line 3: BankAccount(int) in BankAccount cannot be applied to ()
same error in Line 4. This one has me stumped. Can someone see
something I'm missing?


public class BankDemo {
public static void main(String[] args) {
BankAccount alice = new BankAccount(),
bob = new BankAccount();
alice.deposit(500);
bob.deposit(200);
alice.withdraw(100);
bob.deposit(300);

System.out.println("Alice's balance: " + alice.getBalance());
System.out.println("Bob's balance: " + bob.getBalance());
}
}
class BankAccount {
public BankAccount(int initialBalance) {
balance = initialBalance;
}

public void deposit(int amount) {
balance = balance + amount;
}

public void withdraw() {
balance = balance - 100;
}

public void withdraw(int amount) {
balance = balance - amount;
}

public int getBalance() {
return balance;
}

public String toString() {
return "BankAccount [balance=" + balance + "]";
}

private int balance = 0;
}

<> wrote in message
news: oups.com...
> I'm new to programming. When I compile this program, I get this error
> message:
> line 3: BankAccount(int) in BankAccount cannot be applied to ()
> same error in Line 4. This one has me stumped. Can someone see
> something I'm missing?
>
Generally we'd have a lot better chance of helping if you gave the exact
error message, not a paraphrase. However, in this case, the problem seems to
be lines three and four are written with a comma between them. Change lines
three and four as follows and see what happens:

BankAccount alice = new BankAccount();
BankAccount bob = new BankAccount();

I think this will solve your problem.

Rhino

>
> public class BankDemo {
> public static void main(String[] args) {
> BankAccount alice = new BankAccount(),
> bob = new BankAccount();
> alice.deposit(500);
> bob.deposit(200);
> alice.withdraw(100);
> bob.deposit(300);
>
> System.out.println("Alice's balance: " + alice.getBalance());
> System.out.println("Bob's balance: " + bob.getBalance());
> }
> }
> class BankAccount {
> public BankAccount(int initialBalance) {
> balance = initialBalance;
> }
>
> public void deposit(int amount) {
> balance = balance + amount;
> }
>
> public void withdraw() {
> balance = balance - 100;
> }
>
> public void withdraw(int amount) {
> balance = balance - amount;
> }
>
> public int getBalance() {
> return balance;
> }
>
> public String toString() {
> return "BankAccount [balance=" + balance + "]";
> }
>
> private int balance = 0;
> }
>

In article < .com>, wrote:
>I'm new to programming. When I compile this program, I get this error
>message:
>line 3: BankAccount(int) in BankAccount cannot be applied to ()
>same error in Line 4. This one has me stumped. Can someone see
>something I'm missing?
>
>
>public class BankDemo {
> public static void main(String[] args) {
> BankAccount alice = new BankAccount(),
> bob = new BankAccount();
>}
>class BankAccount {
> public BankAccount(int initialBalance) {
> balance = initialBalance;
> }
>}
>

The only constructor in class BankAccount requires that an int be passed as a
parameter to initialize the account to a balance. Your code in main() is
trying to construct two BankAccount objects without passing in the int
parameter:
BankAccount alice = new BankAccount( 1000 );

Lee Weiner
lee AT leeweiner DOT org

On 25 Nov 2005 20:18:26 -0800, wrote, quoted or
indirectly quoted someone who said :

use:
> BankAccount alice = new BankAccount(),

declaration:
> public BankAccount(int initialBalance) {

Don't you see the mismatch?
--
Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.