public class JZ1 { public static void main(String[] args) { int arr[][] =//{{1,1}}; {{1,2,8,9},{2,4,9,12},{4,7,10,13},{6,8,11,15}}; JZ1 test = new JZ1();// Scanner scanner = new Scanner(System.in);// System.out.println("请输入数字/n");// int num ...