Make a class Employee with a name and salary. Make a class Manager inherit from Employee. Add an instance variable, named department, of type String. Supply a method toString that prints the manager’s name, department, and salary. Make a class Executive inherit from Manager. Supply appropriate toString & equals methods for all classes. Supply a test program that tests these classes and methods.

see explaination

Explanation:

class Employee

{

String name;

double salary;

void tostring()

{

System.out.println("Employee:\nName: "+name+"\nSalary: "+salary+"\n");

}

Employee(String n,double s)

{

name=n;

salary=s;

}

}

class Manager extends Employee

{

String department;

void tostring()

{

System.out.println("Manager:\nName: "+name+"\nDepartment: "+department+"\nSalary: "+salary+"\n");

}

Manager(String n,double s,String d)

{

super(n,s);

department=d;

}

}

class Executive extends Manager

{

void tostring()

{

System.out.println("Executive:\nName: "+name+"\nDepartment: "+department+"\nSalary: "+salary+"\n");

}

Executive(String n,double s,String d)

{

super(n,s,d);

}

}

public class test

{

public static void main(String args[])

{

Employee e =new Employee("Neo",12000);

e.tostring();

Manager m =new Manager("Cramster",100000,"Homework");

m.tostring();

Executive ex =new Executive("Chuks",1000000,"Homework");

ex.tostring();

}

}

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the answer will be d