Need help with my bank class

[rpark712]

Hello, I've been trying to make a bank class in my PAP-CS.
This is the code for my bank class.

class Bank				
{	
	
	///////////  ATTRIBUTES  //////////
			
	private double checkingBal;		
	private double savingsBal;			
	
	
	//////////  CONSTRUCTOR METHODS  //////////
	public Bank()					
	{
		checkingBal = 0.0;
		savingsBal = 0.0;
	}
	
	///////////////////////////////////////////////
	
	public Bank(double cBal, double sBal)					
	{
		checkingBal = cBal;
		savingsBal = sBal;
	}
	
	
	//////////  GET "READ-ONLY" METHODS  //////////
	public double getChecking()
	{
		return checkingBal;
	}	
	
	///////////////////////////////////////////////
		
	public double getSavings()
	{
		return savingsBal;
	}
	
	///////////////////////////////////////////////
	
	public double getCombined()
	{
		return savingsBal+checkingBal;
	}
	
	//////////  SET or MUTATOR "READ/WRITE" METHODS  //////////
	public void checkingDeposit(double amount)
	{
		checkingBal += amount;
	}	
		
	///////////////////////////////////////////////	
		
	public void savingsDeposit(double amount)
	{
		savingsBal += amount;
	}
	
	///////////////////////////////////////////////
	
	public void checkingWithdrawal(double amount)
	{
		if (amount > checkingBal)
		{System.out.println("Insufficient Funds!  Transaction Refused!\n");
		 //need help
		}	
		/*  if the account for checking and the combined doesn't have any money
		for the withdrawal it rejects the check and fines $40  */
		
		else if (savingsBal+checkingBal >= amount)	
		{
			// need help
		}
		/*  if the account doesn't have enough money in the checking,
		but has enough for combined. The system moves the money from the 
		savings and puts it in the checking account to avoid fines  */
		
		else
		checkingBal -= amount;
		// if the account has enough money it takes the money directly
	}
	
	///////////////////////////////////////////////
	
	public void savingsWithdrawal(double amount)
	{
		if (amount > savingsBal)
		{System.out.println("Insufficient Funds!  Transaction Refused!\n");
		 //need help
		}
		/*  if the account for savings and the combined doesn't have any money
		for the widthdrawal it rejects the check and fines $40  */
		
		else if (savingsBal+checkingBal >= amount)	
		{
			//need help
		}
		/*  if the account doesn't have enough money in the savings, 
		but has enough for combined. The system moves the money from the 
		checking and puts it in the savings account to avoid fines  */
		
		else 
		savingsBal-=amount;
		// if the account has enough money it takes the money directly
	}				
			
}

and this is my public class.

public class TextLab05 
{

    public static void main(String args[]) 
    {
    	Bank tom = new Bank(0.0,0.0);
		Bank sue = new Bank(3000.0,0.0);
		Bank bob = new Bank(5000.0,10000.0);
		//creates the banks
		
		System.out.println();
		System.out.println("Text Lab 05");
		System.out.println();
		System.out.println();
		System.out.println("Account balances for Tom Smith");
		System.out.println("Checking: $" + tom.getChecking());
		System.out.println("Savings:  $" + tom.getSavings());
		System.out.println("Combined: $" + tom.getCombined());
		//account balance for Tom
		System.out.println();
		System.out.println();
		System.out.println("Account balances for Sue Brown");
		System.out.println("Checking: $" + sue.getChecking());
		System.out.println("Savings:  $" + sue.getSavings());
		System.out.println("Combined: $" + sue.getCombined());
		//account balance for Sue
		System.out.println();
		System.out.println();
		System.out.println("Account balances for Bob Jones");
		System.out.println("Checking: $" + bob.getChecking());
		System.out.println("Savings:  $" + bob.getSavings());
		System.out.println("Combined: $" + bob.getCombined());
		//account balance for Bob
		
		System.out.println();
		System.out.println();
		//space
		
		System.out.println("Tom deposits $1000 in checking and $5000 in savings.");
		//the action
		
		System.out.println();
		System.out.println();
		//space
		
		tom.checkingDeposit(1000.0);
		tom.savingsDeposit(5000.0);
		//Deposits for Tom
		
		System.out.println("Account balances for Tom Smith");
		System.out.println("Checking: $" + tom.getChecking());
		System.out.println("Savings:  $" + tom.getSavings());
		System.out.println("Combined: $" + tom.getCombined());
		//new account balance for Tom
		
		System.out.println();
		System.out.println();
		//space
		
		System.out.println("Bob withdraws $4000 from checking.");
		//the action
		
		System.out.println();
		System.out.println();
		//space
		
		bob.checkingWithdrawal(4000.0);
		//withdraw for bob
		
		System.out.println("Account balances for Bob Jones");
		System.out.println("Checking: $" + bob.getChecking());
		System.out.println("Savings:  $" + bob.getSavings());
		System.out.println("Combined: $" + bob.getCombined());
		//new account balance for Bob
			
		System.out.println();
		System.out.println();
		//space
		
		System.out.println("Tom withdraws $4000 from checking.");
		//the action
		
		System.out.println();
		System.out.println();
		//space
		
		tom.checkingWithdrawal(4000.0);
		
		/* I need the Bank class to execute an overdraft protection, so that the
		 checking account does not suffer a $40 fine. I need to find how to transfer
		 the money between the two accounts */
    }
}

Can anyone tell me the correct method for moving the account money back and forth between the
two account?(checking and savings account)

[Norm]

the correct method for moving the account money back and forth between the two account?

One way would be to subtract it from one (if the balance is high enough and there is no overdraw protection) and to add it to the other.

[rpark712]

Thank you very much. That worked perfectly.