Hi Friend,

Try the following code:

class Person{
private int year;
private String name;
public Person(String name,int year){
year=year;
name=name;
}
}
class Student extends Person{
private String major;
public Student(String name,int year,String major){
super(name,year);
major=major;
}
}
class Instructor extends Person{
private int salary;
public Instructor(String name,int year,int salary){
super(name,year);
salary=salary;
}
}
public class PersonTester
{
public static void main(String[] args)
{
Person p = new Person("Perry", 1959);
Student s = new Student("Sylvia", 1979, "Computer Science");
Instructor e = new Instructor("Edgar", 1969, 65000);
System.out.println(p);
System.out.println("Expected: Person[name=Perry,birthYear=1959]");
System.out.println(s);
System.out.println("Expected: Student[super=Person[name=Sylvia,birthYear=1979],major=Computer Science]");
System.out.println(e);
System.out.println("Expected: Instructor[super=Person[name=Edgar,birthYear=1969],salary=65000.0]");
}
}

Hope that it will be helpful for you.
Thanks