[6 - 20] 1. 문제설명 2. 나의 해답 package ex6_20; import java.util.Random; public class Exercise6_20 { public static void main(String[] args) { // TODO Auto-generated method stub int[] original = {1,2,3,4,5,6,7,8,9}; System.out.println(java.util.Arrays.toString(original)); int[] result = shuffle(original); System.out.println(java.util.Arrays.toString(result)); } private static int[] shuffle(int[] origin..