Question

The Checking account is interest free and charges transaction fees. The first two monthly transactions are free. It charges a $3 fee for every extra transaction (deposit, withdrawal). The Gold account gives a fixed interest at 5% while the Regular account gives fixed interest at 6%, less a fixed charge of $10. Whenever a withdrawal from a Regular or a Checking account is attempted and the given value is higher than the account's current balance, only the money currently available on the account is withdrawn.

This is a question for Java programming. I have to create a subclass called checkingAccount. It's parent account is the Account class. The account has the withdraw and deposit methods. In the checkingAccount class, I have to have the first two transactions(deposits or withdraws) be free, and every transaction after that charge $3.00. Also, if a withdraw is made that is larger than the current balance, I have to make sure that only the current balance is taken out and nothing more. I have this so far:

public class CheckingAccount extends Account {
private int checkingTransactionCount;
  
private static final int FREE_TRANSACTION = 2;
private static final double TRANSACTION_FEE = 3;
  
// Constructs checking account.
public CheckingAccount(Customer customer, int accountNumber, double balance) {
  
// Construct superclass
super(customer, accountNumber, balance) ;
  
int transactionCount = 0;
transactionCount++;
if (transactionCount > 2)

I am stuck here and need help. Thanks.

Answer 1

//If you have any doubt, please ask in the comments

public class CheckingAccount extends Account {
private int checkingTransactionCount=0;
  
private static final int FREE_TRANSACTION = 2;
private static final double TRANSACTION_FEE = 3;
  
// Constructs checking account.
public CheckingAccount(Customer customer, int accountNumber, double balance) {
// Construct superclass
super(customer, accountNumber, balance) ;
}
  
public void deposit(double money)//please change the method signature as needed
{
if(this.checkingTransactionCount>this.FREE_TRANSACTION)//if limit is exceeded
{
money=money-TRANSACTION_FEE;//deduct fee
}
else
{
this.checkingTransactionCount+=1;//else increase the count
}
this.balance+=money;//make deposit
}

public void withdraw(double money)//please change the method signature as needed
{
if(this.checkingTransactionCount>this.FREE_TRANSACTION)//if limit is exceeded
{
money=money+TRANSACTION_FEE;//we will deduct more money in that case
}
else
{
this.checkingTransactionCount+=1;//else increase the count
}
this.balance-=money;//make deposit
if(this.balance<0)//if more money is withdrawn then the balance
{
this.balance=0;
}
}