Which of the following statements is wrong? Select one: With the exception of constants, no attributes may be specified in interfaces. The class must implement at least one method for each interface. The class must implement all methods for each interface or it must be declared abstract. With the help of the keyword "implements" a class can indicate which interfaces it implements.
Question
Which of the following statements is wrong? Select one:
With the exception of constants, no attributes may be specified in interfaces.
The class must implement at least one method for each interface.
The class must implement all methods for each interface or it must be declared abstract.
With the help of the keyword "implements" a class can indicate which interfaces it implements.
Solution
The statement that is wrong is: "The class must implement at least one method for each interface."
In Java, a class that implements an interface must provide an implementation for all methods defined by the interface, not just at least one. If it does not provide implementations for all methods, then the class must be declared as abstract.
Similar Questions
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