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| Core Java - Interview Questions and Answers for 'Functional interface' - 2 question(s) found - Order By Rating | ||||
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| Ans. Create interface with the only one non-overriding abstract method and annotate it with @FunctionalInterface | ||||
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 Discuss Correct / Improve  functional interface java 8  Asked in 1 Companies | ||||
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 What is the @FunctionalInterface annotation ? | ||||
 Not frequently asked as it was introduced with Java 8. | ||||
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| Ans. This is an informative annotation that specify that the interface is a functional interface. A Function Interface has only one abstract method and many default methods. Compiler generates an error if the interface specified with the annotation doesn't abide by the specifications for functional interface. | ||||
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| Discuss Correct / Improve java java8 java 8 functional interface default methods | ||||
| Related Questions | ||||
| How do you define a functional interface? | ||||
