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Why Stream.max(Integer::max) compiles in Java?

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Why is Math::max acceptable while it's apparently not a Comparator

posted Aug 25, 2015 by Karthick.c

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1 Answer

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It relies on a concept which is informally known as "single abstract method (SAM)" interfaces. The basic idea is that any interface with one abstract method can be automatically implemented by any lambda or method reference, if the lambda or method reference matches the SAM in the interface.go to through the following for more detail:
http://www.programcreek.com/2014/01/why-stream-maxintegermax-compile/

answer Mar 14, 2016 by Shivam Kumar Pandey
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