Android and C ++: necessary?

Question

Just check out Android development very superficially, and it seems that most of them work in Java. Nonetheless,

Android includes a set of C / C ++ libraries used by various components of the Android system. These features are provided to developers through the Android framework application.

Does this mean that Android applications use Java and use C ++:

• sometimes?
• a lot of?
• Almost never?
• Never: you can not use it for applications?

Answer 1

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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