第四次作业（java）

package nianan;
import java.util.Arrays;
import java.util.Scanner;
public class yu {public static void main(String[] args){
	        int xLen = 3;
	        int yLen = 3;
	        int[][] a = new int[xLen][yLen];
	        //使用随机数填充二维数组
	        for(int i=0;i 
 
 
 随机取值
 
 
 
 
import java.util.Scanner;

public class test10 {

 public static void main(String[] args) {
  System.out.println("您想调取第几位学生的答题结果（有效数字为1~8）：");
  Scanner sc=new Scanner(System.in);
  int a=sc.nextInt();
  System.out.print("第"+a+"位同学的全部答案为：");
  int sum=0;
  char score[][]=new char[8][10];
  char arr[]=new char[]{'B','A','D','C','C','B','C','A','D','B'};
  score[0]=new char[]{'A','B','C','D','A','C','B','D','A','D'};
  score[1]=new char[]{'B','A','D','B','A','B','B','A','C','B'};
  score[2]=new char[]{'B','A','D','B','A','B','C','A','C','B'};
  score[3]=new char[]{'A','B','C','D','A','C','B','D','A','D'};
  score[4]=new char[]{'A','B','C','D','A','C','B','D','A','D'};
  score[5]=new char[]{'A','B','C','D','A','C','B','D','A','D'};
  score[6]=new char[]{'A','B','C','D','A','C','B','D','A','D'};
  score[7]=new char[]{'A','B','C','D','A','C','B','D','A','D'};
  
   System.out.print(score[a]);
   for (int i = 0; i < 10; i++)
   {
       if (arr[i] == score[2][i]){
        
           sum++;
          
           
           }
     
      
          //B A D BA B C A C B
           //B B C D A C B D A D
       }
    System.out.println();
          System.out.println("第"+a+"位同学一共答对了"+sum+"道题");
       }
 }