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我打開了一個文件,打印出來很好,看起來有點像這樣;我可以幫助計算平均值和總值嗎?
約翰合13 12.00
勞拉小屋6 15.00
但隨着6陣列因爲我有一個getter和setter另一個類,該文件是能夠得到每個人的總薪酬:
約13 12.00 150.00
勞拉小屋6 15.00 120.00
我想打印的所有個人的總薪酬然後得到平均值。 下面是在該文件的內容我的一些代碼
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;
你不需要在while循環中有'for()'循環。在'while'循環運行之後放置它,你將所有工資總和到'total_pay'中,並用'count'除。編輯:就像艾略特提交的答案一樣。 – Norsk