Question

4. Create a Business class. This class should store an array of Employee objects. Add a method to add employees to the Business, similar to addFoodItem in the Meal class. Add two more methods for the Business class: getHighestPaid(), which returns the Employee who has been paid the most in total, and getHighestTaxed(), which returns the Employee who has been taxed the most in total. Note: you do not need to handle the case of ties.

These are all the given and needed classes.

public class Employee extends Person {
    double weeklyBaseSalary;
    double totalPaid;
    double totalTaxed;

    public Employee(String iName, int iAge, double baseSal) {
        super(iName, iAge);
        this.weeklyBaseSalary = baseSal;
    }

    /*
     * Should update the total amount paid/taxed for this employee.
     * Taxes should be 10% of the weekly base salary for employees under the age of 30
     * and 15% for employees aged 30 or older.
     * The total paid to the employee should be the amount remaining after taxes are paid
     */
    public void pay() {
        if (getAge() < 30) {
            totalTaxed = 0.10 * weeklyBaseSalary;
        } else {
            totalTaxed = 0.15 * weeklyBaseSalary;
        }
        totalPaid = weeklyBaseSalary - totalTaxed;
    }

    /*
     * Should return a String representing the employee’s pay cheque.
     * The pay cheque must contain the following information: the employee’s name and age,
     * the weekly base salary, the amount paid in taxes, the amount paid to the employee.
     */
    public String makePaycheque() {
        String result = "";
        result += "Name: " + getName() + ", Age: " + getAge() + "\n";
        result += "Weekly base salary: " + weeklyBaseSalary + "\n";
        result += "Amount paid in taxes: " + totalTaxed;
        result += "Amount paid to the employee: " + totalPaid;
        return result;
    }
    //Add any additional methods you require here
}

public class Person{
private String name;
private int age;

public Person(String iName, int iAge){
name = iName;
age = iAge;
}

public String getName(){
return name;
}

public int getAge(){
return age;
}
}

Answer 1

/*Java program to test the Business class. The below java program create an instance of Business class
* and then add Employee objects Then find the max paid employee and the max tax paid employee.*/
//TestBusiness.java
public class TestBusiness
{
   public static void main(String[] args)
   {
       //create a Business class object
       Business realestatebiz=new Business();
       //Add Employee objects to the Business class
       realestatebiz.add(new Employee("johnson", 35, 25000));
       realestatebiz.add(new Employee("mark", 33, 30000));
       realestatebiz.add(new Employee("sameer", 28, 35000));
       realestatebiz.add(new Employee("milan", 30, 45000));
      
       //print the paycheque to console
       for (int i = 0; i < realestatebiz.getsize(); i++)
       {
           System.out.println(realestatebiz.getEmployee(i).makePaycheque());
       }
      
       //print highest paid amount
       System.out.printf("Max paid employee : $%.2f\n",realestatebiz.getHighestPaid().getPay());
       //print highest tax amount
       System.out.printf("Max tax paid employee : $%.2f\n",realestatebiz.getHighestTaxed().getTaxPaid());
   }
}
---------------------------------------------------------------------------

//Business.java
import java.util.ArrayList;
public class Business
{
   //an array list of Employee class
   private ArrayList<Employee>emps;
   public Business()
   {
       //create an instanace of ArrayList of EMployee type
       emps=new ArrayList<Employee>();
   }
   /*Method,add that takes Employee object
   * as argument and add the employee object
   * to the array list, emps*/
   public void add(Employee emp)
   {
       emps.add(emp);
   }
   public int getsize()
   {
       return emps.size();
   }
   public Employee getEmployee(int index)
   {
       return emps.get(index);
   }
   /*The method, getHighestPaid that returns the highest
   * paid employee*/
   public Employee getHighestPaid()
   {
       Employee maxpaid=emps.get(0);
       for (int i = 0; i < emps.size(); i++)
       {
           if(emps.get(i).getPay()>maxpaid.getPay())
           {
               maxpaid=emps.get(i);
           }          
       }
       //return maxpaid
       return maxpaid;
   }
   /*The method, getHighestTaxed that returns the highest
   * tax paid employee*/
   public Employee getHighestTaxed()
   {
       Employee maxtax=emps.get(0);
       for (int i = 0; i < emps.size(); i++)
       {
           if(emps.get(i).getTaxPaid()>maxtax.getTaxPaid())
           {
               maxtax=emps.get(i);
           }          
       }
       //return maxtax
       return maxtax;
   }
} //end of the Business class
---------------------------------------------------------------------------

//Employee.java
public class Employee extends Person
{
   double weeklyBaseSalary;
   double totalPaid;
   double totalTaxed;

   public Employee(String iName, int iAge, double baseSal) {
       super(iName, iAge);
       this.weeklyBaseSalary = baseSal;
       pay();
   }
   public double getPay()
   {
       return totalPaid;
   }

   public double getTaxPaid()
   {
       return totalTaxed;
   }

   /*
   * Should update the total amount paid/taxed for this employee.
   * Taxes should be 10% of the weekly base salary for employees under the age of 30
   * and 15% for employees aged 30 or older.
   * The total paid to the employee should be the amount remaining after taxes are paid
   */
   public void pay() {
       if (getAge() < 30) {
           totalTaxed = 0.10 * weeklyBaseSalary;
       } else {
           totalTaxed = 0.15 * weeklyBaseSalary;
       }
       totalPaid = weeklyBaseSalary - totalTaxed;
   }

   /*
   * Should return a String representing the employee’s pay cheque.
   * The pay cheque must contain the following information: the employee’s name and age,
   * the weekly base salary, the amount paid in taxes, the amount paid to the employee.
   */
   public String makePaycheque() {
       String result = "";
       result += "Name: " + getName() + ", Age: " + getAge() + "\n";
       result += "Weekly base salary: " + weeklyBaseSalary + "\n";
       result += "Amount paid in taxes: " + totalTaxed;
       result += "Amount paid to the employee: " + totalPaid+"\n";
       return result;
   }
   //Add any additional methods you require here
}

---------------------------------------------------------------------------

//Person.java
public class Person{
   private String name;
   private int age;
   public Person(String iName, int iAge){
       name = iName;
       age = iAge;
   }
   public String getName(){
       return name;
   }
   public int getAge(){
       return age;
   }
}

---------------------------------------------------------------------------

Sample Output:

Name: johnson, Age: 35
Weekly base salary: 25000.0
Amount paid in taxes: 3750.0Amount paid to the employee: 21250.0

Name: mark, Age: 33
Weekly base salary: 30000.0
Amount paid in taxes: 4500.0Amount paid to the employee: 25500.0

Name: sameer, Age: 28
Weekly base salary: 35000.0
Amount paid in taxes: 3500.0Amount paid to the employee: 31500.0

Name: milan, Age: 30
Weekly base salary: 45000.0
Amount paid in taxes: 6750.0Amount paid to the employee: 38250.0

Max paid employee : $38250.00
Max tax paid employee : $6750.00