Creating an Array object, for I/P of records in a Student class, using methods for the same as well as O/P

import java.io.DataInputStream;
class student1
{
String name;
String s1,s2,s3;
int roll;
void getdata(String a, int b, String c, String d, String e)
{
name=a;
roll=b;
s1=c;
s2=d;
s3=e;
}
void display()
{
System.out.println(name+"\t"+roll+"\t"+s1+"\t"+s2+"\t"+s3);
}
}
class x16
{
public static void main(String s[])
{
DataInputStream in = new DataInputStream(System.in);
student1[] ob=new student1[3]; //....creatin an array of n references
for(int y=0;y<3;y++)
{
ob[y]=new student1(); //....generating array in the Heap memory.
}
try
{
for(int i=0;i<3;i++)
{
System.out.println("Enter Name: ");
String n = in.readLine();
System.out.println("Enter Roll: ");
int r = Integer.parseInt(in.readLine());
System.out.println("Enter Subject1: ");
String sub1 = in.readLine();
System.out.println("Enter Subject2: ");
String sub2 = in.readLine();
System.out.println("Enter Subject3: ");
String sub3 = in.readLine();
ob[i].getdata(n,r,sub1,sub2,sub3);
}
}
catch(Exception e)
{}
System.out.println("Name\tRoll\tS1\tS2\tS3");
for(int x=0;x<3;x++)
{
System.out.println(ob[x].name+"\t"+ob[x].roll+"\t"+ob[x].s1+"\t"+ob[x].s2+"\t"+ob[x].s3);
}
}
}