Question

I really need help with this, please. This is a java programming assignment.

Project 1

The first programming project involves writing a program that computes the salaries for a collection of employees of different types. This program consists of four classes.

1. The first class is the Employee class, which contains the employee's name and monthly salary, which is specified in whole dollars.

It should have three methods:

a. A constructor that allows the name and monthly salary to be initialized.

b. A method named annualSalary that returns the salary for a whole year.

c. A toString method that returns a string containing the name and monthly salary, appropriately labeled.

2. The Employee class has two subclasses.

The first is Salesman. It has an additional instance variable that contains the annual sales in whole dollars for that salesman. It should have the same three methods:

a. A constructor that allows the name, monthly salary and annual sales to be initialized.

b. An overridden method annualSalary that returns the salary for a whole year. The salary for a salesman consists of the base salary computed from the monthly salary plus a commission. The commission is computed as 2% of that salesman's annual sales. The maximum commission a salesman can earn is $20,000.

c. An overridden toString method that returns a string containing the name, monthly salary and annual sales, appropriately labeled.

3. The second subclass is Executive. It has an additional instance variable that reflects the current stock price. It should have the same three methods:

a. A constructor that allows the name, monthly salary and stock price to be initialized.

b. An overridden method annualSalary that returns the salary for a whole year. The salary for an executive consists of the base salary computed from the monthly salary plus a bonus. The bonus is $30,000 if the current stock price is greater than $50 and nothing otherwise.

c. An overridden toString method that returns a string containing the name, monthly salary and stock price, appropriately labeled.

4. Finally there should be a fourth class that contains the main method. It should read in employee information from a text file. Each line of the text file will represent the information for one employee for one year.

An example of how the text file will look is shown below:

2014 Employee Smith,John 2000

2015 Salesman Jones,Bill 3000 100000

2014 Executive Bush,George 5000 55

The year is the first data element on the line. The file will contain employee information for only two years: 2014 and 2015.

Next is the type of the employee followed by the employee name and the monthly salary.

For salesmen, the final value is their annual sales and for executives the stock price.

As the employees are read in, Employee objects of the appropriate type should be created and they should be stored in one of two arrays depending upon the year.

You may assume that the file will contain no more than ten employee records for each year and that the data in the file will be formatted correctly.

Once all the employee data is read in, a report should be displayed on the console for each of the two years.

Each line of the report should contain all original data supplied for each employee together with 2 that employee's annual salary for the year. For each of the two years, an average of all salaries for all employees for that year should be computed and displayed.

This is what the output has to look like:

Annual Pay Employee name Monthly Pay Sales Stock Туре Bonus John Smith Employee 9999 99999 George Bush Executive 9999 99 99999 99999 Employee Beatrice Fall 9979 99999 Paul Able Employee 9999 99999 Millicent Caldwell Salesman 9999 999999 9999 99999 Susan Syung Employee 9999 99699 Bill Jones Salesman 999999 9999 9999 99999 Horace Marshall Employee 99999 9999 Report for 9919 Employees: Average Salary is 99999.9 Annual Pay Employee name Monthly Pay Sales Stock Туре Bonus Bill Jones Salesman 9999 999999 9999 99999 Philomet Brevis Clarie Washington Employee 99999 9999 wwwwwwwwvww wv Executive 9999 99 9 99999 Albert Poole Employee 9999 99899 Frederick Naismith Salesman 9999 99999 9999 99999 Employee Xavier Zane 99999 999999 Clovis Peters Employee 9999 66966 Redding Jones Willieam Tinker Employee 9999 99989 Executive 9999 99 99999 97989 Report for 9919 Employees: Average Salary is 99999.99

Answer 1

Employee.java

public class Employee {
   String name;
   int monthlySalary;
  
   Employee(String name, int monthlySalary) {
       this.name = name;
       this.monthlySalary = monthlySalary;
   }
  
   public int annualSalary() {
       return monthlySalary * 12;
   }
  
   public String toString() {
       return ("Name: " + name + " Salary: " + monthlySalary);
   }
}

Salesman.java

public class Salesman extends Employee{
  
   int sales;
  
   Salesman(String name, int monthlySalary, int sales) {
       super(name, monthlySalary);
       this.sales = sales;
   }
  
   @Override
   public int annualSalary() {
       return super.annualSalary() + Math.min(sales/50, 20000);
   }
  
   @Override
   public String toString() {
       return (super.toString() + " Sales: "+sales);
   }

}


Executive.java

public class Executive extends Employee{
   int stock;
  
   Executive(String name, int monthlySalary, int stock) {
       super(name, monthlySalary);
       this.stock = stock;
   }
  
   @Override
   public int annualSalary() {
       int bonus = 0;
       if(stock > 50)
           bonus = 30000;
       return super.annualSalary() + bonus;
   }
  
   @Override
   public String toString() {
       return (super.toString() + " Stock:" +stock);
   }
}


MainClass.java

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.StringTokenizer;

public class MainClass {

   public static void main(String[] args) {
      
       ArrayList<Employee> array2014 = new ArrayList<Employee> ();
       ArrayList<Employee> array2015 = new ArrayList<Employee> ();
      
       BufferedReader in = null;
       try {
           in
           = new BufferedReader(new FileReader("input.txt"));
       } catch (FileNotFoundException e) {
           e.printStackTrace();
       }
      
       while(true) {
           String line = null;
           try {
               line = in.readLine();
           } catch (IOException e) {
               e.printStackTrace();
               break;
           }
          
           if(line == null)
               break;
           StringTokenizer st = new StringTokenizer(line);
           String year, type, name, salary, bonus;
           year = st.nextToken();
           type = st.nextToken();
           name = st.nextToken();
           salary = st.nextToken();
          
           Employee newEmpl = null;
           if(type.equals("Employee")) {
               newEmpl = new Employee(name, Integer.parseInt(salary));
           }
           if(type.equals("Salesman")) {
               bonus = st.nextToken();
               newEmpl = new Salesman(name, Integer.parseInt(salary), Integer.parseInt(bonus));
           }
           if(type.equals("Executive")) {
               bonus = st.nextToken();
               newEmpl = new Executive(name, Integer.parseInt(salary), Integer.parseInt(bonus));
           }
              
           if(year.equals("2014"))
               array2014.add(newEmpl);
           if(year.equals("2015"))
               array2015.add(newEmpl);
          
       }
      
       double avarage = 0.0;
       for(Employee x : array2014) {
           System.out.println(x.toString());
           avarage += x.annualSalary();
       }
       avarage = avarage / array2014.size();
       System.out.println("Avarage salary of 2014 is " + avarage);
      
       avarage = 0.0;
       for(Employee x : array2015) {
           System.out.println(x.toString());
           avarage += x.annualSalary();
       }
       avarage = avarage / array2015.size();
       System.out.println("Avarage salary of 2015 is " + avarage);
   }

}

Output

e Console 3 Problems Javadoc Declaration <terminated> MainClass [Java Application] C:\Program Files\Java\jdk-12\bin\javaw.exe (Jun 9, 2019, 4:40:27 PM) Name: Smith, John Salary: 2000 Name Bush, George Salary: 5000 Stock:55 Avarage salary of 2014 is 57000.e Name Jones, Bill Salary: 3000 Sales: 100000 Avarage salary of 2015 is 38000.0

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