java : two dimentional multiple choice check

public class Shosmo{

public static void score(char [ ] [ ] in){

char [] key ={'A','B','C','D','E','F'};

int count =0;

for (int i=0;i<in.length;i++){

for (int j=0;j<in[i].length;j++)

if (in[i][j]==key[j])count++;

System.out.println("for student "+i+" = "+count);

count=0;

}

}

public static void main (String [ ] إمتحان){

char [][] ans={{'A','C','A','C','B','D'},

    {'E','A','F','A','B','F'},

    {'F','F','F','F','C','A'},

    {'A','B','A','F','B','A'},

    {'E','F','E','A','B','C'},

    {'A','A','A','A','A','A'}

              };

    score(ans);

}

}