How to get words average length using Lambda Expression

Question

I have a word list text file, I want to get min, max and average word lengths from that file.

I have a stream method:

public static Stream

        

Answer 1

Based on official documentation about reductions

System.out.println(readWords(filename)
                .mapToInt(String::length)
                .average()
                .getAsDouble()
);

Note that you can and probably should use method references like String::length