运行结果是输出自己输入的数组
package

import
import
import
import java.util.Scanner;

public class Flower {
    public static void main(String[] args) throws IOException{
    Scanner cin=new Scanner (System.in);
    int n=cin.nextInt();
    int a[][]=new int[n][n];
    Scanner b[]=new Scanner[n];
    String s[]=new String [n];
    int sum =0;
    int i,j;
    BufferedReader stdin=new BufferedReader(new InputStreamReader(System.in));
    for(i=0;i<n;i++)
        {
        s[i]=stdin.readLine();
        }
    for(i=0;i<n;i++)
    {
    b[i]=new Scanner(s[i]);//这个是什么意思呢
        
    }
    for(i=0;i<n;i++)
        {for(j=0;j<n;j++)
        {
            a[i][j]=b[i].nextInt();
            System.out.print(a[i][j]+" ");
        }
    System.out.println();
    }
}}