Child Objects Sharing Memory With Parent

Hello,

I'm pretty new to java, so I'm pretty frustrated with this. I am creating a banking type system with the parent "Account" class having most of the banking operations (deposit, withdraw, view balance) and the "Checking" and "Savings" classes inheriting from the account class with their own specific operations.

My assignment says to create 1 object of account and 2 each of checking and savings. I declare them as

Object account 1 = new Account()
Object checking1 = new CheckingAccount( )
Object checking2 = new CheckingAccount( )
...and so on
Everything works fine until I actually attempt to put in information into the classes. For example, no matter which account of the 5 I deposit money to, they all show that money has been added. I don't exactly get why they would all share the same memory space, but I'm sure it's something I did wrong. Any help would be greatly appreciated.

I'm sorry if the reply is too late, but it's impossible to figure out the problem given the stuff you have posted. I suppose you have 3 classes:
Account
CheckingAccount
SavingAccount

And Checking and Saving accounts must either have their own local variables, or your class Acount must have 4 variables(which is less likely). So I don't really see why modifying one class would affect the others.

Can you post at least the part where you add the money?