package Object;
import java.util.*;
public class ConsumerTest {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("please input a number:");
int n = input.nextInt();
int arr[][] = new int[n][n];
System.out.println("please output:");
for (int i = 0; i < n; i++)
{ for (int j = 0; j < n; j++)
{
if ((i == j) | (i + j) == n - 1)//当i == j 时表示第一条
对角线,当i + j == n-1 时表示第二条对角线
arr[i][j] = 1;
else
arr[i][j] = 0;
System.out.print(arr[i][j]+ "\t");
}
System.out.print("\n");
}
}
}//output
/*please input a number:4
please output:
1 0 0 1
0 1 1 0
0 1 1 0
1 0 0 1
*/