String choose= JOptionPane.showInputDialog(menu + Option1 + Option2+ Option3+ Option4+Option5);
You forget to specify the parent component.
String choose= JOptionPane.showInputDialog(ParentComponent, menu + Option1 + Option2+ Option3+ Option4+Option5);
You were tryiny to say that menu + option1...... was the name of the parent and then not specify a message.
Cheers,
Chris