Payroll System

package payrollsystem3;

import java.util.Scanner;

public class PayrollSystem3 {

    static Scanner sc = new Scanner(System.in);
    static String payrollheader = ("Payroll System");
    static String design = ("=======================\n");

    public static void main(String[] args) {
        System.out.println(design + payrollheader);
        System.out.println("R=Regular");
        System.out.println("C=Contractual");
       boolean keepgoing=true;
        while (keepgoing){
        int regularhourswork = 40;
        int regularrate = 40;
        int overtimerate = 50;
        double sss = 45.50;
        int medicare = 50;
        int pagibig = 50;
        double tax = 0.08;
        double salary = 0;
        int hazzardtrigger = 55;
        int hazzardpay = 300;
        int cregrate = 30;
        int chourswork = 40;
        int otrate = 35;
        double chazpay = 0.1;
        System.out.println(design + "Select Employee type:");
        String employeetype = sc.next();
        if (employeetype.equalsIgnoreCase("") || employeetype.equalsIgnoreCase("R")) {
            System.out.println(design + "Enter number of hours work:");
            int numberofhourswork = sc.nextInt();
            regularhourswork = regularrate * regularhourswork;
            System.out.println(design + "Deduction:");
            if (numberofhourswork >= 0 && numberofhourswork <= 40) {
                salary = numberofhourswork * regularrate;
                tax = salary * tax;
                salary = salary - tax - sss - medicare - pagibig;

            } else if (numberofhourswork <= hazzardtrigger) {
                overtimerate = (numberofhourswork - regularrate) * overtimerate;
                salary = regularhourswork + overtimerate;
                tax = salary * tax;
                salary = salary - tax - sss - medicare - pagibig;
            } else if (numberofhourswork > hazzardtrigger) {
                overtimerate = (numberofhourswork - regularrate) * overtimerate;
                salary = regularhourswork + overtimerate + hazzardpay;
                tax = salary * tax;
                salary = salary - tax - sss - medicare - pagibig;
            } else {
                System.out.println("Invalid Input");
            }
            System.out.println("Tax:" + tax);
            System.out.println("SSS:" + sss);
            System.out.println("Medicare:" + medicare);
            System.out.println("Pag ibig:" + pagibig);
            System.out.println(design + "Computed Salary:" + salary);
        }
        if (employeetype.equalsIgnoreCase("") || employeetype.equalsIgnoreCase("c")) {
            System.out.println(design + "Enter number of hours work:");
            int numberofhourswork = sc.nextInt();
            chourswork = cregrate * chourswork;
            System.out.println(design + "Deduction:");
            if (numberofhourswork >= 0 && numberofhourswork <= 40) {
                salary = numberofhourswork * cregrate;

            } else if (numberofhourswork <= hazzardtrigger) {
                otrate = (numberofhourswork - 40) * otrate;
                salary = chourswork + otrate;

            } else if (numberofhourswork > hazzardtrigger) {
                otrate = (numberofhourswork - 40) * otrate;
                salary =chourswork + otrate;
                chazpay = salary * chazpay;
                salary = salary + chazpay;
            } else {
                System.out.println("Invalid Input");
            }
             System.out.println(design + "Computed Salary:" + salary);
        }
         System.out.println("Do you want to transact another transaction?");
         keepgoing=sc.next().toLowerCase().startsWith("y");
    }
         System.out.println("Goodbye and thank you for using our payroll system");
}
}