1.

In Java 8, what is Method Reference?

Answer»

Method reference is a compact way of referring to a method of FUNCTIONAL interface. It is USED to refer to a method without invoking it. :: (DOUBLE colon) is used for describing the method reference. The syntax is class::methodName

For e.g.: 

Integer::parseInt(str) \\ method reference

str -> Integer.ParseInt(str); \\ EQUIVALENT lambda


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