Write a Java program to display student details using inheritance

import java.io.*;
class Student_Details {
String name;
int roll;
String cname;
String uname;
InputStreamReader in = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(in);
void input() throws IOException {
System.out.print("Enter Student Name: ");
name = br.readLine();
System.out.print("Enter Roll Number: ");
roll = Integer.parseInt(br.readLine());
System.out.print("Enter College Name: ");
cname = br.readLine();
System.out.print("Enter University Name: ");
uname = br.readLine();
}
}
class Main extends Student_Details {
void display() {
System.out.print("\n**** Student Details ****\n" );
System.out.print("\nStudent Name: " + name);
System.out.print("\nRoll Number: " + roll);
System.out.print("\nCollege Name: " + cname);
System.out.print("\nUniversity Name: " + uname);
}
public static void main(String args[]) throws IOException {
Main c = new Main();
c.input();
c.display();
}
}

Output: