Question

JAVA Create an HourlyEmployee class that inherits from Employee and has two new instance variables: hours, which represents the hours worked, and wage, which represents the employee's pay per hour. (Both are doubles.) Create a constructor that takes the arguments first name, last name, social security number, hourly wage, and the number of hours worked. Also create accessors, mutators, an earnings method that returns the money earned by the employee this week, and a toString method that returns information about the employee in the form of a String. The setWage method should ensure that the wage is nonnegative, and the setHours method should ensure that the value of hours is between 0 and 168 (the number of hours in a week).

Create a Driver class with a main method that prompts the user to enter a first name, last name, social security number, hours, and wage for an employee. Then, the program should create an HourlyEmployee object and use its toString method to print information about it.

SAMPLE RUN #1: java Driver

Enter·first·name:Bobbi↵
Enter·last·name:Benton↵
Enter·social·security·number:765-42-0092↵
Enter·hours·worked:53↵
Enter·wage:15.8↵
hourly·employee:·Bobbi·Benton↵
social·security·number:·765-42-0092↵
hours:·53.0·↵
wage:·15.80·↵
earnings:·837.40↵

Answer 1

import java.util.*;
class Employee
{   
   private String firstName,lastName,ssn;   
   public Employee(String firstName,String lastName, String ssn) // constructor   
   {
   this.firstName = firstName;   
   this.lastName = lastName;
   this.ssn = ssn;
   }
   public String toString()
   {
       return "employee : "+firstName +" "+lastName +"\nsocial security number : "+ssn;
   }
  
}

class HourlyEmployee extends Employee
{
   private double wage;
   private double hours;
   public HourlyEmployee(String firstName,String lastName, String ssn, double wage,double hours)
   {
       super(firstName,lastName,ssn);
       this.wage = wage;
       this.hours = hours;
   }   
  
   public double earnings()
       {
           return wage * hours;
       }
   public void setWage(double wage)
           {   
               if(wage > 0)
               this.wage = wage;
               else   
               wage = 0;   
           }   
   public void setHours(double hours)
           {
               if(hours > 0 && hours <= 168)
               this.hours = hours;
               else
               hours = 0;
           }
       public String toString()   
       {
           return "hourly "+ super.toString()+"\nhours : "+hours+"\nwages : "+wage+ String.format("\nearnings :%.2f",earnings());
           }
          
  
}

class TestEmployee{
   public static void main (String[] args)   
   {   
   Scanner input = new Scanner(System.in);
   System.out.println("Enter first name:");
   String firstName = input.next();   
   System.out.println("Enter last name:");
   String lastName = input.next();   
   System.out.println("Enter social security number:");
   String ssn = input.next();
   System.out.println("Enter hours worked:");
   double hours = input.nextDouble();   
   System.out.println("Enter wage:");   
   double wage = input.nextDouble();   
   HourlyEmployee emp = new HourlyEmployee(firstName,lastName,ssn,hours,wage);
   System.out.println(emp);
   }
  
}

Output:

Enter first name:Mazie 
Enter last name:Payne 
Enter social security number:633-38-5740 
Enter hours worked:45
Enter wage:22.5
hourly employee : Mazie Payne
social security number : 633-38-5740
hours : 22.5
wages : 45.0
earnings :1012.50

Do ask if any doubt. Please upvote.