Abstract class in Java

import java.util.Scanner;
abstract class Person{
    String name, city;
    Scanner sc=new Scanner(System.in);
}
class Emp extends Person{
    int empcode;
    float bsal;
    void get()
    {
        System.out.println("Enter employee name:");
        name=sc.nextLine();
        System.out.println("Enter city:");
        city=sc.nextLine();
        System.out.print("Enter employee code:");
        empcode=sc.nextInt();
        System.out.print("Enter basic salary:");
        bsal=sc.nextFloat();
    }
    void disp()
    {
        System.out.println("Employee name:"+name);
        System.out.println("City:"+city);
        System.out.println("Employee Code:"+empcode);
        System.out.println("Basic Salary:"+bsal);
    }
}
class Stu extends Person{
    int roll;
    String course;
    void get()
    {
        System.out.println("Enter student name:");
        name=sc.nextLine();
        System.out.println("Enter city:");
        city=sc.nextLine();
        System.out.print("Enter course:");
        course=sc.nextLine();
        System.out.print("Enter roll:");
        roll=sc.nextInt();
    }
    void disp()
    {
        System.out.println("Student name:"+name);
        System.out.println("City:"+city);
        System.out.println("Roll:"+roll);
        System.out.println("Course:"+course);
    }
}
public class Abs{
    public static void main(String args[])
    {
        Emp obj1=new Emp();
        Stu obj2=new Stu();
        obj1.get();
        obj2.get();
        obj1.disp();
        obj2.disp();
    }
}