Java:从文件中读取并查找文件中所有数字的总和和平均值

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class FileNumberSumAndAverage {
    public static void main(String[] args) {
        String fileName = "file.txt"; // 文件名

        try (BufferedReader reader = new BufferedReader(new FileReader(fileName))) {
            String line;
            int sum = 0;
            int count = 0;

            while ((line = reader.readLine()) != null) {
                String[] numbers = line.split("\\s+"); // 使用空格分隔数字
                for (String number : numbers) {
                    if (number.matches("\\d+")) { // 判断是否为数字
                        int num = Integer.parseInt(number);
                        sum += num;
                        count++;
                    }
                }
            }

            double average = (double) sum / count;

            System.out.println("总和：" + sum);
            System.out.println("平均值：" + average);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}