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There exists an abstract class Bird.
public abstract class Bird { public Bird() {} public String eat() { return "worms"; } public...Lab 1A: ADT versus Interface (CodeWorkout) [Dev.]
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Exercises
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Understanding that an interface is a reference type in Java, how many interfaces can a class theoretically implement?
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What interface does the Array list implement?
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What's wrong with the following code? Assume both the interface and class share the same package.
public interface Account { int...