Program that display average of marks for each subject

/*  Program that display average of marks for each subject*/

class TwoDArray2
{
    public static void main(String args[ ])
    {
        int i , j ;
        int marks[][] ={ {65,68,75,59,77},
                 {62,85,57,66,80},
                 {71,77,66,63,86} } ;
        float avg ;
        System.out.print("\t\t");
        for (i = 0 ; i < 5 ; i++)
            System.out.print("subj"+(i+1)+"\t");

        System.out.println("\n");
        for (i=0 ; i<3 ; i++)
        {
            System.out.print(" student"+(i+1)+"\t");
            for(j=0 ; j<5 ; j++)
                System.out.print(marks[i][j]+"\t");
            System.out.print("\n");
        }
        System.out.print("\n\nThe Average of each subject is : \n") ;

        for (j=0 ; j<5 ; j++)
        {
            System.out.print("Subject"+(j+1)+" : ") ;

            for (i=0,avg=0 ; i<3 ; i++)
                avg = avg + (float)marks[i][j] ;

            avg = avg / 3 ;                              
            System.out.print(avg+"\n");
        }
       
    }
}