1月10日 作业- 遍历二维数组的两张方法及求和

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);
}

}