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2. Average length of words

2022-04-23 06:08:00 【linsa_ pursuer】

Each sentence consists of multiple words , The length of each word in the sentence may be different , Give the average word length of the whole sentence 

package com;

import java.math.BigDecimal;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        System.out.println(avg(s.nextLine()));
    }

    public static String avg(String words){
        String[] arr = words.split(" ");
        int sum = 0;
        for(int i=0;i<arr.length;i++){
            sum += arr[i].length();
        }

        return (new BigDecimal(String.valueOf(sum))).divide(new BigDecimal(String.valueOf(arr.length)), 2, BigDecimal.ROUND_HALF_UP).toPlainString();
    }
}

Such as ：

Input ：Who Love Solo
Output ：3.67

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