t java.security.AccessController.doPrivileged(Native Method)

[John Beese]

  public void determineFuelGrade()
    {
	    if(regularJRadioButton.isSelected())
		 
		 regularFuel = new RegularFuel(gallonsOfGas,regularGas);
		 totalAmount = regularFuel.getResults();
		 totalSaleJTextField.setText("" + currency.format (totalAmount));
	    	
	    if(premiumJRadioButton.isSelected())
		 
		 premiumFuel = new PremiumFuel(gallonsOfGas,premiumGas);
		 totalAmount = premiumFuel.getResults();
		 totalSaleJTextField.setText("" + currency.format (totalAmount));
		
	 }

This one has proven to be difficult. It compiles and runs but only if i use the regular button first and even still that error message i used as my subject title. Im thinking i should be using an if/this combination, but i really dont know. Any suggestions?

[Daniel Marti]

Can you please give us the declaration of the atributes you are using?
Sounds like you are making use of a server, a secure connection to a web place, or controlling the access to a field. Showing us the declaration will help us help you .

[Rob Spoor]

John, can you post the stack trace you're getting? Also, you are aware that both if statements require brackets {} to execute all lines below them? Right now they are only executing the first line directly after them; the other lines are always executed.

[Daniel Marti]

Rob Spoor wrote:John, can you post the stack trace you're getting? Also, you are aware that both if statements require brackets {} to execute all lines below them? Right now they are only executing the first line directly after them; the other lines are always executed.

How did i miss that? ... That would probably fix your problem right there.