gistfile1.txt

package brent;
import java.text.NumberFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
public class Brent {


    public static void main(String[] args)
    {
       // Billing Statement Header
        System.out.println("Southwest Power and Light"+"\tElectric Utility Charges");
        System.out.println("--------------------------------------------------------");
        
        Scanner sc = new Scanner(System.in);
        Scanner scan = new Scanner(System.in);
        Scanner scanD = new Scanner(System.in);
        
        //perform invoice cal until choic isnt't equal to "y" or "Y"
        String choice = "y";
        while (choice.equalsIgnoreCase("y"))
        {   
            //Declare Variables
            String userName="", dateIn="";
            int month=0, date=0, year=0, KwUsed=0;
            
             Date now = new Date();              
        SimpleDateFormat todaysDate = new SimpleDateFormat("MM/dd/yyyy");
        System.out.println("Date: " + todaysDate.format(now));
            
            System.out.print("Please enter your name (Last, First): ");
            userName = scan.nextLine();
        
     // Loop until dateIn is valid
                boolean validDate = false;
                while (!validDate)
                {
                    try
                    {
                        System.out.print("Meter reading date (mm/dd/yyyy): ");
                        dateIn = scan.nextLine();
                        SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");
                        sdf.setLenient(false);
                        sdf.parse(dateIn);
                        validDate = true;
                    }
                    catch (ParseException invalidDate)
                    {
                        System.out.println("Please enter a valid date.");
                    }
                }
            try (Scanner scanDate = new Scanner(dateIn)) {
                scanDate.useDelimiter("/");
                month = scanDate.nextInt();
                date = scanDate.nextInt();
                year = scanDate.nextInt();
            }
            
           // Loop until KW is valid
                boolean valid = false;
                {
                    try
                    {
                       System.out.print("Electricity used (KW): ");
                       KwUsed = scanD.nextInt();
                       valid = true;
                    }
                    catch (InputMismatchException e)
                    {
                    scanD.next(); 
                    System.out.println("Please enter KW value.");
                    continue;   // check here
                    }  
                    }
                     //Calculate base rate via Meter Read Date
                double baseRate = 0;
                switch (month)
                {
                    case 1: //January
                        baseRate=0.10;break;
                    case 2: //February
                        baseRate=0.10;break;
                    case 3: //March
                        baseRate=0.12;break;
                    case 4: //April
                        baseRate=0.12;break;
                    case 5: //May
                        baseRate=0.12;break;
                    case 6: //June
                        baseRate=0.15;break;
                    case 7: //July
                        baseRate=0.15;break;
                    case 8: //August
                        baseRate=0.15;break;
                    case 9: //September
                        baseRate=0.15;break;
                    case 10: //October
                        baseRate=0.15;break;
                    case 11: //November
                        baseRate=0.15;break;
                    case 12: //December
                        baseRate=0.10;break;
                }
                //Currency Format
                NumberFormat currency = NumberFormat.getCurrencyInstance();
                
                double totalAmountDue = 0;
                double baseLineCharge = 0;
                double baseCharge = (baseRate*KwUsed);
                double overBaselineCharge = 0;
                double excessCharge = 0;
                if(KwUsed<=350)
                {
                    baseLineCharge = baseCharge;
                    overBaselineCharge = 0;
                    excessCharge = 0;          
                }
                if(KwUsed>350 & KwUsed<501)
                {
                    baseLineCharge = baseRate*350;
                    overBaselineCharge = (KwUsed-350)*(baseRate*.10+baseRate);
                    excessCharge = 0;        
                }
                if(KwUsed>500)
                {
                    baseLineCharge = baseRate*350;
                    overBaselineCharge = (150)*(baseRate*.10+baseRate);
                    excessCharge = (KwUsed-500)*(baseRate*.25+baseRate);        
                }
                
                totalAmountDue = baseLineCharge + overBaselineCharge + excessCharge;
                
     //Print Output
                System.out.println("\nName:                "+ userName);
                System.out.println("Meter Reading Date:    "+ month + "/" + date + "/" + year);
                System.out.println("Electricity Used (KW): "+ KwUsed);
                System.out.println("Baseline charge:       "+ currency.format(baseLineCharge));
                System.out.println("Over-Baseline charge:  "+ currency.format(overBaselineCharge));
                System.out.println("Excess Charge:         "+ currency.format(excessCharge));
                System.out.println("Total amount due:      "+ currency.format(totalAmountDue));
                System.out.println("Thank you for using Southwest Power & Light");
                
                
               
                
                
                
               
                
         System.out.print("Continue? (y/n): ");
               choice = sc.next();
               
    }
    
    }
}