having trouble with my output. It prints in the correct format as long as the last digit isn't a zero. In other words, it will output $1.75 but for $1.50 I get $1.5. I know the "%.2f" is supposed to format it but I can't figure out where to put it in my code. Thanks!
/** This Class is designed to work with an application program for a Vending Machine. */ public class VendingMachine { private double money; private double amountDue; private double change; private String selection; /** Constructor for the Class. */ public VendingMachine() { money = 0.00; amountDue = 0.00; change = 0.00; selection = ""; } /** Explicit Constructor for the class that gives variables more specific values. */ public VendingMachine(double money, double change, double amountDue, String selection) { this.money = money; this.amountDue = amountDue; this.change = change; this.selection = selection; } /** Accesssor method for the selection. @return the selection of the user. */ public String getSelection() { return selection; } /** Accessor method to get the amount of money the user puts in the machine. @return the amount of money. */ public double getMoney() { return money; } /** Accessor method for the amount due. @return the amount due. */ public double getAmountDue() { return amountDue; } /** Accessor method for getting the user's change. @return the user's change. */ public double getChange() { return change; } /** Mutator method for the selection. @param the selection of the user. */ public void setSelection(String selection) { this.selection = selection; } /** Mutator method for money. @param the money put into machine. */ public void setMoney(double money) { this.money = money; } /** Mutator method for amount due. @param the selection of the user. */ public double setAmountDue(String selection) { if (selection.equals("A1") || selection.equals("A2") || selection.equals("A3")) { amountDue = 1.25; } else if (selection.equals("B1") || selection.equals("B2") || selection.equals("B3")) { amountDue = 1.00; } else if (selection.equals("C1") || selection.equals("C2") || selection.equals("C3")) { amountDue = 1.50; } return amountDue; } /** Mutator method for the change. @param the money put into machine. */ public void setChange(double money) { change = money - amountDue; this.change = change; } /** Method for converting all variables into a String statement. @return a String of the total transaction. */ public String toString() { return ("Your selection: " + selection + "\nYour amount due: " + amountDue + "\nYour change: " + change); } } import java.util.*; /** This program runs a Vending Machine and interacts with the user. */ public class VendingMachineTester { public static void main(String[] args) { Scanner in = new Scanner(System.in); String input; String[] choices = {"A1~~SNICKERS~~~~~~~~$1.25", "A2~~MILKY WAY~~~~~~~$1.25" , "A3~~TWIX~~~~~~~~~~~~$1.25", "B1~~ORIGINAL CHIPS~~$1.00", "B2~~BBQ CHIPS~~~~~~~$1.00" , "B3~~PRETZELS~~~~~~~~$1.00", "C1~~COKE~~~~~~~~~~~~$1.50", "C2~~SPRITE~~~~~~~~~~$1.50", "C3~~DR. PEPPER~~~~~~$1.50", }; displayItems(choices); VendingMachine user = new VendingMachine(); do { System.out.print("Please make your selection: "); input = in.nextLine(); } while (!(input.equals("A1") || input.equals("A2") || input.equals("A3") || (input.equals("B1") || input.equals("B2") || input.equals("B3") || (input.equals("C1") || input.equals("C2") || input.equals("C3"))))); user.setSelection(input); user.setAmountDue(input); System.out.print("Enter the amount you put in the machine: "); double amount = in.nextDouble(); user.setMoney(amount); user.setChange(amount); System.out.println(user); System.out.print("Thank You for your purchase!"); } /** A method for displaying all of the options in the machine. @param an array of choices @return an array of choices. */ public static void displayItems(String[] choices) { for (int i = 0; i < choices.length; i++) { System.out.print(choices[i]); System.out.println(); } return; } } 
