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Description
Flashcards by joannazhang13, updated more than 1 year ago
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Created by joannazhang13
about 10 years ago
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| Question | Answer |
| Interface | A collection of related methods with provided headers but no implementations |
| All of the methods are... | Public and abstract |
| An interface is declared with ____ keyword | interface |
| Interfaces are implemented using ____ keyword | implements |
| A class that does not implement all methods declared in the interface must be declared_____ | abstract |
| The classes that implement the same interface can be very different but must have _____ | A common feature or capability |
| Can an interface instantiate variables? | No it cannot |
| Does the extends clause precede the implements clause? | Yes it must precede implements |
| A class can implement how many interfaces? | It can implement any number of them. |
| Does an interface contain instance variables? | No it does not. |
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