Java functional interfaces

dvas0004 / NerdNotes

A collection of notes: things I'd like to remember while reading technical articles, technical questions I couldn't answer, and so on.

12 stars 0 forks source link

Open dvas0004 opened 5 years ago

dvas0004 commented 5 years ago

Functional Interfaces can only have one abstract method. Default and static methods don't count toward this limit. Functional Interfaces:

can be annotated with @FunctionalInterface (not mandatory, if there is only one abstract method compiler will infer this)
are implemented by lambdas