As these resource bundles are localized for different languages and country requirements, they are appended with the locale identifier. The locale identifier portion of the resource bundles name is additive. You can not omit the language code if, for example, you include the country code. Scalar resources-These resources hold one value such as a Unicode string, an integer, or binary data. Complex resources-These resources can be iterated over, can hold other resources, and also organize resources.
Complex resources can hold both scalar and complex resources.
The present types of complex resources are tables and arrays. Tables enable you to access resources using a key and an index. Keys for resources in a table consist of invariant characters. Arrays enable you to use indices only. Resource bundles are currently in table format, but this constraint might be removed in the future.