try, catch and if error in a combo box with java and netbeans

I assure you all that this is not homework.

I have a combo box:

try {
    double input = Double.valueOf(input1.getText());
    double output = 0;

My combo box code here:

 if (output < 2.50){
     answerField.setText("£2.50");

         }
         else{
     answerField.setText("£" + String.valueOf (fmt.format(output)));
      catch (Exception e) {    JOptionPane.showMessageDialog(this,
 "Please enter numbers in the fields.
 Numbers are 1 2 3 4 5 etc.",
 "Oooops!!!",
 JOptionPane.ERROR_MESSAGE);
}

The problem I have is that when I run it like this it won't work. if I take the if statement out and leave try catch in, it works and also if I take the try and catch out it and leave only the if, it also works

When I run it using the above, 开发者_如何转开发I get this error:

catch without try
; expected

Can anyone help?

you must close your else bracket, and then your try bracket:

try {
  if (..) {
     ...
  } else {
     ...
  }
} catch (Exception e) {..}