public class lianxi { public static void main(String[] args) { // TODO 自动生成的方法存根 int a[][] = {{1,5,8,4,6},{5,8,6,89,54,25,1},{9,81,23,65,24,60}}; int d = 0; System.out.print("二维数组所有元素有:"); for (int b[] : a ) { for (int c : b) { System.out.print(c+" "); d += c; } } System.out.println("各元素和是"+d); int sum = 0; for (int i = 0; i < a.length ; i++ ) { for (int j = 0; j < a[i].length;j++) { sum += a[i][j]; } } System.out.println("数组的和是"+sum); } }
1.二维数组所有元素有:1 5 8 4 6 5 8 6 89 54 25 1 9 81 23 65 24 60 各元素和是474
2.数组的和是474