Question

How to calculate the average length of the strings in string array with Java

Answer 1

import java.util.Arrays;

class CalculateAverageLengthOfStringsInStringArray_Java {
    public static void main(String[] args) {
        String[] arr = { "c#", "c", "c++", "java", "python" };

        double average = Arrays.stream(arr)
                               .mapToInt(String::length)
                               .average()
                               .orElse(0);

        System.out.println(average);
    }
}

   
/*
run:
   
3.2
   
*/

 

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