AWKWARD ZOMBIE

import java.util.*;
       
public class Calculator {
public static void main(String[] args) {
   
    Scanner input = new Scanner(System.in);
        //Scanner class imported to utilize keyboard input.
   
    double fixedSalary = 100_000;
    double annualSales;
    double commissionValue;
    double commissionRate = .05;
    double salesTarget = 120_000;
    double salesBegin = 96_000;
    double totalCompensation;
    double maximumAnnualSales;
    double maximumCompensation;
        //Variable names describe what they represent clearly.
       
    System.out.print("Enter salesperson's total annual sales: $");
    annualSales = input.nextDouble();
        //User inputs the amount of sales the salesperson has made.
   
    while (annualSales < 0 || annualSales > 99999999)
    {
        System.out.println("Invalid input.");
        System.out.println();
        System.out.print("Enter salesperson's total annual sales: $");
        annualSales = input.nextDouble();
        //If the input is invalid the user is notified and prompted
        //to enter valid input.
    }
   
    if (annualSales >= salesBegin && annualSales < salesTarget) {
        commissionValue = (annualSales * commissionRate);
        //If the sales are over 80% of the sales target but don't meet it
        //then the sales incentive executes.
    }
    else if (annualSales >= salesTarget) {
        commissionValue = ((annualSales * commissionRate) * 1.25);
        //If the sales meet or exceed the sales target it adds on
        //the acceleration factor to the output.
    }
    else commissionValue = 0;
        //If no conditions are met then there is no commission.
   
    totalCompensation = fixedSalary + commissionValue;
        //Final total
   
    System.out.println("Salesperson's total annual compensation is: "
        + "$"
        + totalCompensation 
    );
        //The program outputs the total annual compensation of the salesperson.
     
    System.out.println();
        //Blank line to separate from the total.
    System.out.println("Total Possible Sales \t Total Possible Annual Compensation" );
   
    maximumAnnualSales = annualSales * 1.5;
        //Maximum potential sales are 150% of actual.
     
    do {
        System.out.println("$" + annualSales
        + "\t\t" + "$" + totalCompensation);
       
        annualSales = annualSales + 5000;
        }
    while (annualSales <= maximumAnnualSales);
    //Loop takes annual sales and projects to 1.5 times the amount. Intention
    //is for annual compensation to do the same but the table shows identical
    //values and I can't figure out why since there are no explicit errors.
}       
    }

try {
   annualSales = input.nextDouble(); }
         catch (Exception e) {annualSales = -1; }