Basically, the math should be $5 + $1 + $2 if I get both the whipped cream and chocolate.

If I do $5 + $1 should be just for the whipped cream

$5 + $2 should be for the chocolate.

The price goes up the more cups you add to the equation. What am I missing?

When the code is ran on my device, nothing adds correctly.

package com.example.android.justjava;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;

/**
 * This app displays an order form to order coffee.
 */
public class MainActivity extends AppCompatActivity {

    int quantity = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    /**
     * This method is called when the plus button is clicked.
     */
    public void increment(View view) {
        quantity = quantity + 1;
        displayQuantity(quantity);
    }

    /**
     * This method is called when the minus button is clicked.
     */
    public void decrement(View view) {
        quantity = quantity - 1;
        displayQuantity(quantity);
    }

    /**
     * This method is called when the order button is clicked.
     */
    public void submitOrder(View view) {

        //Displays name of customer when order button is pressed.
        EditText nameField = (EditText) findViewById(R.id.name_field);
        String name = nameField.getText().toString();

        //Figures out if the user wants whipped cream topping.
        CheckBox whippedCreamCheckBox = (CheckBox) findViewById(R.id.whipped_cream_checkbox);
        boolean hasWhippedCream = whippedCreamCheckBox.isChecked();

        //Figures out if user wants chocolate topping.
        CheckBox chocolateCheckBox = (CheckBox) findViewById(R.id.chocolate_checkbox);
        boolean hasChocolate = chocolateCheckBox.isChecked();

        int price = calculatePrice(hasWhippedCream, hasChocolate);
        String priceMessage = createOrderSummary(name, price, hasWhippedCream, hasChocolate);
        displayMessage(priceMessage);
    }

    /**
     * Calculates the price of the order.
     *
     * @param addWhippedCream is whether or not user wants whipped cream
     * @param addChocolate is whether or not user wants chocolate
     * @return total price
     */
    private int calculatePrice(boolean addWhippedCream, boolean addChocolate) {
        //Price of 1 cup of coffee
        int basePrice = 5;

        //Adds $1 if user wants whipped cream
        if (addWhippedCream); {
        basePrice = basePrice + 1;
        }

        //Adds $2 if user wants chocolate
        if (addChocolate) {
            basePrice = basePrice + 2;
        }

        //Calculate total order price by multiplying by quantity
        return quantity * basePrice;
    }

    /**
     * Create summary of the order.
     *
     * @param name of the customer.
     * @param price of the order.
     * @param hasWhippedCream is whether or not user wants whipped cream.
     * @param hasChocolate is Whether or not user wants chocolate.
     * @return text summary.
     */
    private String createOrderSummary(String name, int price, boolean hasWhippedCream, boolean hasChocolate) {
        String priceMessage = "Name: " + name;
        priceMessage += "\nAdd whipped cream? " + hasWhippedCream;
        priceMessage += "\nAdd chocolate? " + hasChocolate;
        priceMessage += "\nQuantity: " + quantity;
        priceMessage += "\nTotal: $" + price;
        priceMessage += "\nThank you!";
        return priceMessage;
    }

    /**
     * This method displays the given quantity value on the screen.
     */
    private void displayQuantity(int number) {
        TextView quantityTextView = (TextView) findViewById(R.id.quantity_text_view);
        quantityTextView.setText("" + number);
    }

    /**
     * This method displays the given text on the screen.
     */
    private void displayMessage(String message) {
        TextView orderSummaryTextView = (TextView) findViewById(R.id.order_summary_text_view);
        orderSummaryTextView.setText(message);
    }
}