Introduction to Java Programming编程题9.18<IO流处理>

/*File Score.txt number of the sum and average are:sum = 448.9Average = 44.9*//**Score.txt:-------------------------------------------------33.5 88 72 25 11.332.11 56 76 43 12*/import java.util.Scanner;public class TheFileScore {  public static void main(String[] args) throws Exception {    java.io.File file = new java.io.File("Score.txt");    Scanner input = new Scanner(file);    double sumNumber = 0;    int count = 0;    while (input.hasNext()) {      sumNumber += input.nextDouble();      count++;    }    double average = sumNumber / count;    System.out.println("File Score.txt number of the sum and average are: ");    System.out.printf("sum = %.1f\n", sumNumber);    System.out.printf("Average = %.1f\n", average);  }}