package jp.co.jid.etc; public class Exercise02 { public static void main(String[] args) { int array[] = create(5); for (int num : array) { System.out.println(num); } System.out.println("---------------------"); System.out.println("平均値は" + getAvg(array)); } private static int[] create(int count) { int array[] = new int[count]; for (int i = 0; i < count; i++) { array[i] = (int) (Math.random() * 100) + 1; } return array; } private static double getAvg(int array[]) { int sum = 0; for (int num : array) { sum += num; } return sum / array.length; } }