Question

我打开了一个文件，它打印得很好，看起来有点像这样;

John Hop 13 12.00

Laura Shack 6 15.00

但是有一个6的数组。由于我有另一个带有getter和setter的类，该文件能够得到每个人的总薪水：

John 13 12.00 150.00

Laura Shack 6 15.00 120.00

我想打印所有个人的总薪水，然后获得平均值。这是我的一些代码

public class PayRoll {

public static void main(String[] args) {
    final int NUMBER_OF_WORKERS = 15;

    final String INPUT_FILE = "data.txt";
    Worker[] worker_ar = new Worker[NUMBER_OF_WORKERS];

    Scanner file = null;

    try {

        file = new Scanner(new File(INPUT_FILE));
    } catch (FileNotFoundException e) {
        System.err.println("File Not Found!");
    }

    String line = null;
    int count = 0;
    double total_pay = 0;
    double avg_pay = 0;

    while ((file.hasNextLine()) && (count < worker_ar.length)) {
        String fName = file.next();
        String lName = file.next();
        int hours = file.nextInt();
        double hrly_pay = file.nextDouble();

        worker_ar[count] = new Worker(fName, lName, hours, hrly_pay);

        count++;
//Here, i tried computing the average but it is wrong. 
        for (int i = 0; i < count; i++)
            total_pay = total_pay + worker_ar[i].computePay();

            avg_pay = total_pay / count;

Answer 1

在计算总数和平均值（或至少是平均值）之前，完成文件内容的读取。像

这样的东西

TimeoutException

我可以帮助计算平均值和总数吗？

1 个答案: