java 键盘输入二维数组

---import java.util.*;public class InputDemo {public static void main(String[] args) {int x;int y;Scanner reader = new Scanner(System.in);System.out.print("请输入二维数组的行数x：");x = reader.nextInt();System.out.print("请输入二维数组的列数y：");y = reader.nextInt...