A companion object is similar in syntax to an inner class because we declare it inside a regular class, but note we refer to it as an object, not a class. This implies it is in itself an instance as opposed to a blueprint for an instance. This is exactly what it is. When we declare a companion object inside a class, its properties and functions are shared by all instances of the regular class. It is perfect when we want a bunch of regular classes to share one set of related data. We will see a companion object in action in the next app, and also in the Age database app in the penultimate chapter.
Argentina
Australia
Austria
Belgium
Brazil
Bulgaria
Canada
Chile
Colombia
Cyprus
Czechia
Denmark
Ecuador
Egypt
Estonia
Finland
France
Germany
Great Britain
Greece
Hungary
India
Indonesia
Ireland
Italy
Japan
Latvia
Lithuania
Luxembourg
Malaysia
Malta
Mexico
Netherlands
New Zealand
Norway
Philippines
Poland
Portugal
Romania
Russia
Singapore
Slovakia
Slovenia
South Africa
South Korea
Spain
Sweden
Switzerland
Taiwan
Thailand
Turkey
Ukraine
United States