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5 Cards in this Set
- Front
- Back
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what is a abstract class
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base or template class that should never been instantiated only subclasses can be instantiated, can contain code and methods but no code for new instances
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difference between abstract class and interface
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interfaces are good for changing desing where as abstract is good for default behavior
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benefits of using interfaces
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best to use when you have something that you want to swap in and out, something that changes frequently
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can interfaces use static or final
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no
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what is a interface
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its a contract, all methods in the interface must be in the class that implements it, for example: bicycle -> bmx implements bicycle
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