Method main

Problem8.java:7–56

(String[] args)

public class Problem8 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scan = new Scanner(System.in);
		double[] average;
		int N, sum;
		String line;
		String[] numbersInALineStr;
		int[] numbersInALineStrInt;

		N = scan.nextInt();
		scan.nextLine();
		average = new double[N];

		for (int i = 0; i < N; i++) {
			line = scan.nextLine();
			sum = 0;

			numbersInALineStr = line.trim().split("\\s+");
			numbersInALineStrInt = new int[numbersInALineStr.length];

			for (int j = 0; j < numbersInALineStr.length; j++) {
				numbersInALineStrInt[j] = Integer.parseInt(numbersInALineStr[j]);
			}

			for (int number : numbersInALineStrInt) {
				while (number < 0 || number > 100) {
					line = scan.nextLine();

					numbersInALineStr = line.trim().split("\\s+");
					numbersInALineStrInt = new int[numbersInALineStr.length];

					for (int j = 0; j < numbersInALineStr.length; j++) {
						numbersInALineStrInt[j] = Integer.parseInt(numbersInALineStr[j]);
					}
				}
			}

			for (int j = 1; j <= numbersInALineStrInt[0]; j++) {
				sum = sum + numbersInALineStrInt[j];
			}

			average[i] = (double) sum / numbersInALineStrInt[0];
		}
		scan.close();

		for (int i = 0; i < average.length; i++) {
			System.out.printf("%.2f\n", average[i]);
		}

	}

}