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answer Java @FunctionalInterface annotation

related functionalinterface annotation

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Java 8 Functional Interfaces

Example : An interface can extend any number of interfaces at a time.

functional interface java

functional interface java

Is it possible to define our own Functional Interface? What is @FunctionalInterface? What are the rules to define a Functional Interface?

functionality of consumer functional interface in java

functionality of consumer functional interface in java

functionality of consumer functional interface in java

functionality of consumer functional interface in java

Name some of the functional interfaces in the standard library

most used functional interfaces

Which annotation enables component scanning for interfaces that declare they are Feign clients?

can you create functionalInterface without annotation @FunctionalInterface

Custom Functional Interfaces