Code in JAVA and see attached images for information on classes and methodsA company pays its personnel on a weekly basis. The personnel are of 4 types: FixedWeekly personnel are paid a fixed amount regardless of the number of hours workedByTheHour personnel are paid by the hour and receive overtime pay for all hours worked in excess of 40PercentOfSales personnel are paid a percentage of their salesFixedWeeklyPercentOfSales personnel receive a fixed amount plus a percentage of their sales.Create a class called Personnel. This class will represent the general concept of all personnel. All 4 types of personnel are considered Personnel. FixedWeeklyPercentOfSales personnel are considered to be PercentOfSales Personnel. The Personnel class will also be Payable. You will need to create the Payable interface. It will contain just one method called earnings(). Test RunPersonnel processed polymorphically:FixedWeekly personnel: Harry Clarksocial security number: 111-11-1111weekly salary: $800.00earned $800.00ByTheHour personnel: Katie Brownsocial security number: 222-22-2222ByTheHour wage: $16.75; hours worked: 40.00earned $670.00PercentOfSales personnel: Joan Whitesocial security number: 333-33-3333gross sales: $10,000.00; PercentOfSales rate: 0.06earned $600.00FixedWeeklyPercentOfSales personnel: Bob Greensocial security number: 444-44-4444gross sales: $5,000.00; PercentOfSales rate: 0.04; FixedWeekly salary: $300.00new FixedWeekly salary with 10% increase is: $330.00earned $530.00 Write a class to test your inheritance hierarchy. In that class do the following:Create 4 Personnel objects. Use the below informationThe Test Data is in a File called personnel.txt and contains the following data:fixed Harry Clark 111-11-1111 800.00hour Katie Brown 222-22-2222 16.75 40percent Joan White, 333-33-3333 10000 .06fxdpercent Bob Green 444-44-4444 5000 .04 300The first token in each line in the data file represents a code for the type of Personnelfixed – FixedWeeklyhour – ByTheHourpercent – PercentOfSalesfxdpercent - FixedWeeklyPercentOfSalesReading the data file (Suggested approach.if you use a different approach make sure youthoroughly document your approach)Read a line at a time from the filestore each line in an array of StringsTokenize (split) the string (In the Java API, learn about using the split method for a String)Instantiate the correct type of Personnel object based on a personnel codestore the object in an array of Personnel so that you can access them polymorphically.Process these objects polymorphically displaying a string representation for all Personnel andtheir earnings as shown at the end of this document (i.e. loop through your array of Personnel,this could have been a file that contained thousands of Personnel)You will need to perform special processing on FixedWeeklyPercentOfSales objects inthat we have decided to give them a 10% permanent increase to their FixedWeeklysalary. (check out the instanceof operator in java.)Handle exceptionsFileNotFoundNumberFormatExceptionAny other appropriate exceptionsOutputWrite your output to the screen (copy and paste that output to the bottom of your testclass).Write your output to a textfile named "payroll.txt".O O Personnel have a first name, last name, and social security number. FixedWeekly personnel have a firstname, last name, social security number and fixed weekly salary. ByTheHour personnel have a firstname, last name, social security number, an hourly wage, and number of hours worked. PercentOfSalespersonnel have a first name, last name, social security number, gross sales amount, and commissionrate. FixedWeeklyPercentOfSales personnel have a first name, last name, social security number, grosssales amount, commission rate and a fixed weekly salary.The Personnel class will contain an appropriate 3 parameter constructor and a default constructor,appropriate accessors and mutators, toString, and equals methods. Two Personnel will be consideredequal if their earnings are the same. It will also contain an earnings method which must beimplemented by the subclasses. The constructor will validate that the social security number is in theproper format (999-99-9999). If not in the proper format, the constructor will assign XXX-XX-XXXX forthe social security number. (you can do this using appropriate methods of the String class or by usingwhat are called Regular Expressions..it might be easier to just use methods from the String class ratherthan learning about Regular Expressions - your choice)The FixedWeekly class will contain an appropriate 4 parameter constructor and a default constructor,appropriate accessors and mutators, earnings, toString, and equals methods. You decide whether youneed to override or simply inherit methods from the super class. The constructor will validate that thefixed weekly salary is not negative. If the salary figure is negative the fixed weekly salary value will be setto 0.The ByTheHour class will contain an appropriate 5 parameter constructor and a default constructor,appropriate accessors and mutators, earnings, toString, and equals methods. You decide whether youneed to override or simply inherit methods from the super class. The constructor will validate that thehourly wage is not negative and that the hours worked is between 0 and 60 inclusive. If the hourly wageis negative set the hourly wage to 0. If hours worked is not in the proper range, set the hours worked to0.The PercentOfSales class will contain an appropriate 5 parameter constructor and a default constructor,appropriate accessors and mutators, earnings, toString, and equals methods. You decide whether youneed to override or simply inherit methods from the super class. The constructor will validate that thegross sales amount is not negative and that the commission rate is a value between 0.0 and 1.0 inclusive.If these conditions are not met then set the appropriate variable values to 0.The FixedWeeklyPercentOfSales class will contain an appropriate 6 parameter constructor and a defaultconstructor, appropriate accessors and mutators, earnings, toString, and equals methods. You decidewhether you need to override or simply inherit methods from the super class. The constructor willvalidate that the fixed weekly salary amount is not negative. If the fixed weekly salary is negative set theappropriate variable value to 0.

The Following Program Contains 6 Class and one main Program. Class 1 : Worker Worker public class…

Code in JAVA and see attached images for information on classes and methods A company pays its personnel on a weekly basis. The personnel are of 4 types: FixedWeekly personnel are paid a fixed amount regardless of the number of hours worked ByTheHour personnel are paid by the hour and receive overtime pay for all hours worked in excess of 40 PercentOfSales personnel are paid a percentage of their sales FixedWeeklyPercentOfSales personnel receive a fixed amount plus a percentage of their sales. Create a class called Personnel. This class will represent the general concept of all personnel. All 4 types of personnel are considered Personnel. FixedWeeklyPercentOfSales personnel are considered to be PercentOfSales Personnel. The Personnel class will also be Payable. You will need to create the Payable interface. It will contain just one method called earnings(). Test Run Personnel processed polymorphically: FixedWeekly personnel: Harry Clark social security number: 111-11-1111 weekly salary: $800.00 earned $800.00 ByTheHour personnel: Katie Brown social security number: 222-22-2222 ByTheHour wage: $16.75; hours worked: 40.00 earned $670.00 PercentOfSales personnel: Joan White social security number: 333-33-3333 gross sales: $10,000.00; PercentOfSales rate: 0.06 earned $600.00 FixedWeeklyPercentOfSales personnel: Bob Green social security number: 444-44-4444

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks