import java.util.Random;
public class test2 {
public static void main(String[] args) {
//二维数组静态初始化
int[][] arr = {{1, 2, 3, 4}, {5, 6, 7, 8, 9}};
System.out.println(arr[1][1]);
for (int i = 0; i < arr.length; i++) {
for (int j = 0; j < arr[i].length; j++) {
System.out.print(arr[i][j] + " ");
}
System.out.println(" ");
}
//二维数组动态初始化
System.out.println("二维数组动态初始化：");
int[][] arr1 = new int[5][6];
Random r = new Random();
for (int i = 0; i < arr1.length; i++) {
for (int j = 0; j < arr1[i].length; j++) {
int index = r.nextInt(101);
arr1[i][j] = index;
}
}
System.out.println("打印二维数组动态初始化的值为：");
for (int i = 0; i < arr1.length; i++) {
for (int j = 0; j < arr1[i].length; j++) {
System.out.print(arr1[i][j] + "\t");
}
System.out.println(" ");
}
}
}
