Program stuck in nested switch

Question

I am trying to make a Coffee Machine, however my program doesn't go back to the first switch loop after inputting something.

I have not encountered any error messages, and have tried to add break; statements.

All I need this program to do is return to the main switch loop so the user can keep using the program, instead of being stuck inside the second switch loop.

package machine;

import javax.crypto.spec.PSource;
import java.util.Scanner;

public class CoffeeMachine {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);

        int waterAmount = 400;
        int milkAmount = 540;
        int beanAmount = 120;
        int cupAmount = 9;
        int moneyAmount = 550;

        int fillWater = 0;
        int fillMilk = 0;
        int fillBeans = 0;
        int fillCups = 0;

        int takeCase = 0;

        boolean exitBoolean = false;


        String actionList = "Write action (buy, fill, take, remaining, exit):";
        String machineHas = "The coffee machine has:";
        String writeWater = "Write how many ml of water do you want to add:";
        String writeMilk = "Write how many ml of milk do you want to add: ";
        String writeBeans = "Write how many grams of coffee beans do you want to add:";
        String writeCups = "Write how many disposable cups of coffee do you want to add:";
        String action1;
        String action2;

        System.out.println(machineHas);
        System.out.println(waterAmount + " " + "of water");
        System.out.println(milkAmount + " " + "of milk");
        System.out.println(beanAmount + " " + "of coffee beans");
        System.out.println(cupAmount + " " + "of disposable cups");
        System.out.println(moneyAmount + " " + "of money");

        System.out.printf(actionList);
        action1 = s.next();

        while (!exitBoolean) {
            switch (action1) {
                case "buy":
                    System.out.printf("What do you want to buy? 1 - espresso, 2 - latte, 3 - cappuccino:");
                    action2 = s.next();
                    switch (action2) {
                        case "3":
                            waterAmount = waterAmount - 200;
                            milkAmount = milkAmount - 100;
                            beanAmount = beanAmount - 12;
                            cupAmount = cupAmount - 1;
                            moneyAmount = moneyAmount + 6;

                            System.out.println(machineHas);
                            System.out.println(waterAmount + " " + "of water");
                            System.out.println(milkAmount + " " + "of milk");
                            System.out.println(beanAmount + " " + "of coffee beans");
                            System.out.println(cupAmount + " " + "of disposable cups");
                            System.out.println(moneyAmount + " " + "of money");
                            break;
                        case "2":
                            waterAmount = waterAmount - 350;
                            milkAmount = milkAmount - 75;
                            beanAmount = beanAmount - 20;
                            cupAmount = cupAmount - 1;
                            moneyAmount = moneyAmount + 7;

                            System.out.println(machineHas);
                            System.out.println(waterAmount + " " + "of water");
                            System.out.println(milkAmount + " " + "of milk");
                            System.out.println(beanAmount + " " + "of coffee beans");
                            System.out.println(cupAmount + " " + "of disposable cups");
                            System.out.println(moneyAmount + " " + "of money");
                            break;
                        case "1":
                            waterAmount = waterAmount - 250;
                            beanAmount = beanAmount - 16;
                            cupAmount = cupAmount - 1;
                            moneyAmount = moneyAmount + 4;

                            System.out.println(machineHas);
                            System.out.println(waterAmount + " " + "of water");
                            System.out.println(milkAmount + " " + "of milk");
                            System.out.println(beanAmount + " " + "of coffee beans");
                            System.out.println(cupAmount + " " + "of disposable cups");
                            System.out.println(moneyAmount + " " + "of money");
                            break;
                    }
                    break;
                case "fill":
                    System.out.println(writeWater);
                    fillWater = s.nextInt();

                    System.out.println(writeMilk);
                    fillMilk = s.nextInt();

                    System.out.println(writeBeans);
                    fillBeans = s.nextInt();

                    System.out.println(writeCups);
                    fillCups = s.nextInt();

                    waterAmount = waterAmount + fillWater;
                    milkAmount = milkAmount + fillMilk;
                    beanAmount = beanAmount + fillBeans;
                    cupAmount = cupAmount + fillCups;
                    moneyAmount = moneyAmount;

                    System.out.println(machineHas);
                    System.out.println(waterAmount + " " + "of water");
                    System.out.println(milkAmount + " " + "of milk");
                    System.out.println(beanAmount + " " + "of coffee beans");
                    System.out.println(cupAmount + " " + "of disposable cups");
                    System.out.println(moneyAmount + " " + "of money");

                case "take":
                    System.out.println("I gave you $" + moneyAmount);

                    moneyAmount = moneyAmount - moneyAmount;

                    System.out.println(machineHas);
                    System.out.println(waterAmount + " " + "of water");
                    System.out.println(milkAmount + " " + "of milk");
                    System.out.println(beanAmount + " " + "of coffee beans");
                    System.out.println(cupAmount + " " + "disposable cups");
                    System.out.println(moneyAmount + " of money");


                case "remaining":
                    System.out.println(machineHas);
                    System.out.println(waterAmount + " " + "of water");
                    System.out.println(milkAmount + " " + "of milk");
                    System.out.println(beanAmount + " " + "of coffee beans");
                    System.out.println(cupAmount + " " + "disposable cups");
                    System.out.println(moneyAmount + " of money");
                default:
                    System.out.println("Unknown Input!");
                case "exit":
                    exitBoolean = true;

            }
        }
    }

}