Minor error in this code snippet? Can you see it?

Question

Following is an inner class. I think this problem is really small. Here it is:
class TotalButtonListener implements ActionListener
public void actionPerformed(ActionEvent e)
totalField.setText(Integer.toString(Integer.parseInt (quartersField.getText()) * quarterValue +
Integer.parseInt(nickelsField.getText()) * nickelValue + Integer.parseInt(dimesField.getText()) * dimeValue));
ActionListener totalListener = new TotalButtonListener();
totalAmountButton.addActionListener(totalListener);
HERE IS THE ERROR:
cannot resolve symbol
symbol : method toString (double)
location: class java.lang.Integer
totalField.setText(Integer.toString(Integer.parseInt(quartersField.getText()) * quarterValue +
^
1 error
Tool completed with exit code 1

Answer 1

There is no method java.lang.Integer.toString() that accepts a double as the argument.
You either want to use java.lang.Double.toString() or cast the result of your expression into an integer.
A hint: it's much easier to read and debug this sort of code when you use temporary variables, as in:
public void actionPerformed( ActionEvent e ) {
   int dimes = Integer.parseInt( dimesField.getText() );
   int nickes = Integer.parseInt( nickelsField.getText() );
   int quarters Integer.parseInt( quartersField.getText() );
   double total;
   total = ( quarters * 0.25 ) + ( dimes * 0.10 )...
   totalField.setText( total );
}And when you do it this way, Java will automatically cast the total into a String for you when setting the totalField.setText().
Don't forget, you're gonna want to check (trap) errors when the user types in a string like "hello" into the quarters field.