Exercise Solutions: Model Validation

Event information to add:

1. Add a field to collect information about where the event will take place. This field should not be null or blank.

   @NotBlank(message="Location cannot be left blank.")
   private String location;
   

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3. Add a field to collect information about the number of attendees for the event. Valid values for this field should be any number over zero.

   @Positive(message="Number of attendees must be one or more.")
   private int numberOfAttendees;
   

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