Program to Serialize Student Deserialize student object in Java

// Program to Serialize Student Deserialize student object.
import java.io.*;
class Student implements Serializable
{
int rno;
String sname;
double marks;
 
// Constructor
Student( int r, String nm, double m )
{
 rno = r;
 sname = nm;
 marks = m;
}

void display()
{
 System.out.println(" Roll No. : " + rno );
 System.out.println(" Name : " + sname );
 System.out.println(" Marks : " + marks );
}

public static Student getData() throws IOException
{  
 int r;
 String nm;
 double m;
 
 BufferedReader br = new BufferedReader( new InputStreamReader( System.in ));
 
 System.out.print(" Enter roll number : ");
 r = Integer.parseInt(br.readLine());
 
 System.out.print(" Enter name : ");
 nm = br.readLine();
 
 System.out.print(" Enter total marks : ");
 m = Double.parseDouble(br.readLine());
 
 // Creating Student object and initializing
 Student s = new Student(r, nm, m);
 return s;
}
}
class StudentDeserialization
{
public static void main( String args[ ] ) throws Exception
{
 // attach FileInputStream to file.
 FileInputStream fis = new FileInputStream( "StuFile" );
 
 // attach ObjectInputStream to FileInputStream.
 ObjectInputStream ois = new ObjectInputStream( fis );
 
 // read object (s) from 'ois'
 Student s;
 s = (Student)ois.readObject();
 
 // Display student object (s)
 s.display();
 
 ois.close();  
}
}

Output:
 Roll No. : 290
 Name : Nils Patel
 Marks : 99