:: (double colon) operator in Java 8

Question

I was exploring the Java 8 source and found this particular part of code very surprising:

//defined in IntPipeline.java
@Override
public fin         


        

Answer 1

In java-8 Streams Reducer in simple works is a function which takes two values as input and returns result after some calculation. this result is fed in next iteration.

in case of Math:max function, method keeps returning max of two values passed and in the end you have largest number in hand.