Program to count Total marks and highest marks obtained by student

/* Program to count Total marks and highest marks obtained by student  */ 

import java.io.DataInputStream;   // to load DataInputStream class          

class P12
{
    public static void main(String args[ ])
    {
        int marks[][]=new int[5][3];
        int total[]=new int[5];       
        int i,j,high=0,index=0;
        DataInputStream in = new DataInputStream(System.in);
       
        try
        {
                  System.out.println("Enter marks obtained by students :");
            for (i=0;i<5;i++)
              for(j=0;j<3;j++)
                         marks[i][j]= Integer.parseInt(in.readLine());
        }
        catch(Exception e) {  System.out.println("I/O Error");   }
       
        System.out.println("\n\n *****Annual Examination Result***** \n ");

        System.out.print(" \n\t\t ");
        for (i=0;i<3;i++)
            System.out.print("subj"+(i+1)+"\t");
            System.out.println("");
        System.out.println("\t\t________________________");

        for(i=0;i<5;i++)
        {
             System.out.print(" Roll No. "+(i+1)+"|\t   ");
             for(j=0;j<3;j++)
            System.out.print(marks[i][j]+"  \t");
             System.out.println();
        }
       
        for(i=0;i<5;i++)
             for(j=0;j<3;j++)
            total[i]= total[i]+marks[i][j];

        System.out.println("\n**Total marks Obtained by each student**\n");
        for(i=0;i<5;i++)
            System.out.println("Total marks of Roll No. "+(i+1)+" : "+total[i]);

        System.out.println("\n**Student who obtained the highest Total marks** \n");
        for(i=0;i<5;i++)
           if(high<total[i])
           {
            high=total[i];
            index = i;
           }
        System.out.println("Highest marks "+high+" obtained by Roll No. "+(index+1));

        System.out.println("\n**Student who obtained the highest marks in each subject** \n");
        high=0;index=0;

        for(j=0;j<3;j++)
        {
          for (i=0;i<5;i++)
          {
              if(high<marks[i][j])
              {
             high=marks[i][j];
             index=i;
              }
           }
              System.out.println("Highest marks "+high+" obtained by Roll No. "+(index+1)+" in subject "+(j+1));
              high=0;
        }
         
         
               
    }
}