Thread: Java coding help

Please help with this question - 14. Internet Service provider, Part 2

Modify the program you wrote for Programming Challenge 13 so it also calculates and displays the amount of money Package A customers would save if they purchased Package B or C, and the amount of money Package B customers would save if they purchased Package C. If there would be no savings, no message should be printed.

This is the code I have so far, but I am missing how much we could've saved if we had chosen B or C in all cases.

 import java.util.Scanner;
 
public class Ch3Challenge14 {
public static void main( String [] args ) {
 
// Package A base price stays constant at 9.95.
final double PACKAGE_A_BASE_PRICE = 9.95;
// Package B base price stays constant at 13.95.
final double PACKAGE_B_BASE_PRICE = 13.95;
// Package C base price stays constant at 19.95.
final double PACKAGE_C_BASE_PRICE = 19.95;
// Declare the 10 hour limit for package A.
final int PACKAGE_A_HOUR_LIMIT = 10;
// Declare the 20 hour limit for package B.
final int PACKAGE_B_HOUR_LIMIT = 20;
// Declare extra fee of $2.00 for every hour over the base price of package !.
final double PACKAGE_A_EXTRA_FEE = 2;
// Declare extra fee of $1.00 for every hour over the base price of package B.
final double PACKAGE_B_EXTRA_FEE = 1;
// Declare hours entered by user and store as integer.
int userInputHours;
// Declare variable for how many hours over the base / initially zero hours exceeded to start.
int hoursExceeded = 0;
// Declare new variable to not override values given for package A.
int hoursExceededCompare = 0;
// Declare variable for extra charge over the hour limit / initially zero charge added..
double extraCharge = 0;
// Declare new variable to not override package A value.
double extraChargeCompare = 0;
// Declare variable to store the total bill value / initially total bill =0..
double totalBill = 0;
// Declare variable for how much they would've paid with package B.
double packageBPriceCompare = 0;
// Declare variable for how much money they would've saved if they had chosen package B.
double packageBSavings = 0;
// Declare variable for how much money they would've saved if they had chosen package C.
double packageCSavings = 0;
 
Scanner scanner = new Scanner( System.in );
 
// Create string variable to hold what the user enters.
String userInputPackage;
 
// Ask the user to enter which package that they have - A, B or C.
System.out.println( "\nWhat package do you have - A, B, or C?" );
// We have what package the user types stored - A, B, or C.
userInputPackage = scanner.nextLine();
 
// Ask the user how many hours that they used.
System.out.println( "How many hours did you use?" );
// We will have how many hours the user typed stored.
userInputHours = scanner.nextInt();
 
// Calculate how much he/she will pay for package A.
if ( userInputPackage.equalsIgnoreCase( "a" ) ) {
// How much user has to pay depending on how many hours over base price (9.95).
if( userInputHours > PACKAGE_A_HOUR_LIMIT ) {
// Calculate the hours exceeded over the 10 hour limit for package A.
hoursExceeded = userInputHours - PACKAGE_A_HOUR_LIMIT;
// Calculate the extra charge for every extra hour exceeded.
extraCharge = hoursExceeded * PACKAGE_A_EXTRA_FEE;
}
// Display the total bill which is equal to the base price plus the calculated extra charge.
totalBill = PACKAGE_A_BASE_PRICE + extraCharge;
 
// Calculate how much a package A user would pay for package B.
if( userInputHours > PACKAGE_B_HOUR_LIMIT ) {
hoursExceededCompare = userInputHours - PACKAGE_B_HOUR_LIMIT;
extraChargeCompare = hoursExceededCompare * PACKAGE_B_EXTRA_FEE;
}
packageBPriceCompare = PACKAGE_B_BASE_PRICE + extraChargeCompare;
if( packageBPriceCompare < totalBill ){
packageBSavings = totalBill - packageBPriceCompare;
// Display how much money a package A user would have saved if he/she switched to package B.
System.out.printf( "You will save $%,.2f if you switch to Package B\n", packageBSavings );
}
 
// Calculate how much a package A user would pay for package C.
if( PACKAGE_C_BASE_PRICE < totalBill ) {
packageCSavings = totalBill - PACKAGE_C_BASE_PRICE;
// Display how much money a package A user would have saved if he/she had chosen package C.
System.out.printf( "You will save $%,.2f if you switch to Package C\n", packageCSavings );
}
 
} else if( userInputPackage.equalsIgnoreCase("b") ) {
// How much user has to pay depending on how many hours over base price (13.95).
if ( userInputHours > PACKAGE_B_HOUR_LIMIT ) {
// Calculate the hours exceeded over the 20 hour limit for package B.
hoursExceeded = userInputHours - PACKAGE_B_HOUR_LIMIT;
// Calculate the extra charge for every extra hour exceeded.
extraCharge = hoursExceeded * PACKAGE_B_EXTRA_FEE;
}
// Display the total bill which is equal to the base price plus the calculated extra charge.
totalBill = PACKAGE_B_BASE_PRICE + extraCharge;
 
if( PACKAGE_C_BASE_PRICE < totalBill) {
// Calculate how much user would save if they had chosen package C.
packageCSavings = totalBill - PACKAGE_C_BASE_PRICE;
// Display to the user how much they would have saved if they had chosen package C.
System.out.printf( "You will save $%,.2f if you switch to Package C\n", packageCSavings );
}
 
 
} else if( userInputPackage.equalsIgnoreCase("c") ) {
// Display the total bill which is equal to the base price without any extra charge.
totalBill = PACKAGE_C_BASE_PRICE;
}
// Store what user enters: userInputPackage in %s, hoursExceeded in %d, extraCharge in %f).
System.out.printf("You chose Package %s\nHours Exceeded: %d\n Extra charge: %f\nTotal charge: %f",
userInputPackage, hoursExceeded, extraCharge, totalBill );