java - 使用 while 循环从文件中读取

Question

我的问题是:如何使用 while 循环从文件中读取输入？

我编写了这段代码，我想知道如何使用 While 循环以另一种方式再次编写它。

<小时/>

Scanner infile = new Scanner(new FileReader("while_loop_infile.in"));

    int sum;
    int average;
    int N1, N2, N3,N4,N5, N6, N7, N8, N9, N10;

    N1= infile.nextInt();
    N2= infile.nextInt();
    N3= infile.nextInt();
    N4= infile.nextInt();
    N5= infile.nextInt();
    N6= infile.nextInt();
    N7= infile.nextInt();
    N8= infile.nextInt();
    N9= infile.nextInt();
    N10= infile.nextInt();

    sum = N1 + N2 + N3 + N4 + N5 + N6 + N7 + N8 + N9 + N10;
    average = sum / 10;

    System.out.println("The sum is " + sum);
    System.out.println("The average is " + average);

    infile.close();

-------------------- 这是输入文件 ---------------------- --------

10
20
30
40
50
60
70
80
90
100

Answer 1

只需进行最少的修改即可支持您请求的更改:

Scanner infile = new Scanner(new FileReader("while_loop_infile.in"));

int sum;
int average;
int N[10];
int i = 0;

while (i < 10) {
    N[i] = infile.nextInt();
    sum += N[i];
    i++;
}   

average = sum / 10; 

System.out.println("The sum is " + sum);
System.out.println("The average is " + average);

infile.close();