[6 - 23] 1. 문제설명 2. 나의 해답 package ex6_23; public class Exercise6_23 { public static void main(String[] args) { // TODO Auto-generated method stub int[] data = {3,2,9,4,7}; System.out.println(java.util.Arrays.toString(data)); System.out.println("최대값:"+max(data)); System.out.println("최대값:"+max(null)); System.out.println("최대값:"+max(new int[]{})); // 크기가 0인 배열 } private static int max(int[] data) { ..