Exception argument

Hello, How can I include an argument in an exception tag? For example, this is a piece of my "struts_config.xml": ... ... Could I have a "errors.deleted" with the following sentence(next key): "{0} is an invalid number." I would like to include an argument in my "errors.deleted" wh

exception argument

I don't know English very well, I'm sorry... How can I include an argument in an exception tag? For example, this is a piece of my "struts_config.xml": ... ... I would like to include an argument in my "errors.deleted" wich I can throw from servlet "companies.actions.CompaniesDelete