Hi, this is my application closing code. I have a confirmation dialog box to ask if the user wishes to close the application, what should I put if user decides not to quit the application?

Code:
public void windowClosing(WindowEvent we) {
int answer ;
answer = JOptionPane.showConfirmDialog(null,"Are you sure you want to exit?","Exit System",JOptionPane.YES_NO_OPTION) ;
if (answer == 0) {
System.out.println("You have successfully quit Restaurant System ver. 1.0 Built By: Lex Seetoh") ;
System.exit(0) ;
}
else if (answer == 1) {
System.exit(1) ;
}
}
Please enlighten me.