Question

I am unsure on how to do this (java language)

The program you must write needs to perform the following.

1. Read from stdin(System.in), up to 100 whitespace separated words, and store them in a data structure of your choice.

2. Calculate the average word length.

3. Print each word which is greater than the average length, in the reverse order thatthey were read in.

4. Print "Average: "followed the average word length to two decimal places.

5. If no words are entered then there should be no output at all.

Answer 1

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#----------------------INPUT/OUTPUT---------------------------

#---------------------------------------------------------------------

import java.util.Scanner;

class Main {

    public static void main(String[] args) {

        //scanner object

        Scanner scanner = new Scanner(System.in);

        //reads input and splits into array

        String[] arr = scanner.nextLine().split(" ");

        int total = 0;

        //loops over the array

        for (int i = 0; i < arr.length; i++) {

            //adds the lenght

            total = total + arr[i].length();

        }

        //finds the average

        double avg = (double) total / arr.length;

        //checks if lengh>0 that is user entered words

        if (arr.length > 0) {

            //loop over the array in reverse

            for (int i = arr.length - 1; i >= 0; i--) {

                //checks length

                if (arr[i].length() > avg) {

                    System.out.println(arr[i]);

                }

            }

            //prints with 2 decimal places

            System.out.printf("Average: %.2f", avg);

        }

    }

}