Write a segment of code that will use a dialog box to ask a user to enter their age. Their age will then be stored in an int variable named userAge. Assume that the necessary import statements to support the dialog box are already in place.
What will be an ideal response?
```
int userAge;
String ageStr; // used for user's response
ageStr = JOptionPane.showInputDialog("How old are you"?);
userAge = Integer.parseInt(ageStr);
```
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