성적 인수를 1차원으로 받아서 2차원으로 저장후 행 렬별 계산

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class  arr {     public static void main(String[] args)     {           int [][] aS=new int [5][3] ;           int [] aSc=new int [15];           for (int i=0;i<15 ;i++ )           {           String num = args[i];                   aSc[i]= Integer.parseInt(num);           }           //위에꺼 인수를 1차원 배열에 투입             //아래꺼 1차원 배열을 2차원 배열에 투입           for (int a=0;a<5;a++ )           {               for (int b=0;b<3 ;b++ )               {                 int c=3*a+b;                 int z=aSc[c];//여기서 에러                 aS[a][b]=z;                                     }           }           //아래 학생별 성적           System.out.println("학생별별 성적");           for (int a=0;a<5;a++ )           {               int tot =0;                               for (int b=0;b<3 ;b++ )               {                                  int w = 0;                 w=aS[a][b];                 tot += w;                 }               System.out.println(tot);           }           //아래 과목별 성적             System.out.println("과목별 성적");           for (int b=0;b<3;b++ )           {               int tot2 =0;                               for (int a=0;a<5 ;a++ )               {                int w2=0;                w2=aS[a][b];                tot2 +=w2;                                                       }               System.out.println(tot2);           }                 } }