Coffee-Machine-Simulator/CoffeeMachine3.java at main · Charann05/Coffee-Machine-Simulator · GitHub

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package machine;

import java.util.Scanner;

public class CoffeeMachine3 {

    static int availableMoney = 550;
    static int availableWater = 400;
    static int availableMilk = 540;
    static int availableBeans = 120;
    static int availableDisposalCups = 9;

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        display();

        System.out.println("Write action (1.buy, 2.fill, 3.take) : ");
        byte choice = sc.nextByte();

        switch(choice){

            case 1 :{
                        buy();
                        break;
            }

            case 2 :{
                        fill();
                        break;
            }

            case 3 : {
                        take();
                        break;
            }

            default : System.out.println("Invalid Input!");
        }
        display();
        sc.close();

    }
    public static void buy(){
        Scanner scbuy = new Scanner(System.in);

        System.out.println("What do you want to buy? (1.espresso, 2.latte, 3.cappuccino) :");
        byte type = scbuy.nextByte();
        scbuy.close();

        switch(type){

            case 1 :{
                        availableWater -= 200;
                        availableBeans -= 16;
                        availableMoney += 4;
                        availableDisposalCups--;
                        break;
            }
            case 2 :{
                        availableWater -= 350;
                        availableMilk -= 25;
                        availableBeans -= 20;
                        availableMoney += 7;
                        availableDisposalCups--;
                        break;
            }
            case 3 :{
                        availableWater -= 200;
                        availableMilk -= 100;
                        availableBeans -= 12;
                        availableMoney += 6;
                        availableDisposalCups--;
                        break;
            }
        }
    }

    public static void fill(){
        Scanner scfill = new Scanner(System.in);

        System.out.println("Write how many ml of water you want to add : ");
        availableWater += scfill.nextInt();
        System.out.println("Write how many ml of milk you want to add : ");
        availableMilk += scfill.nextInt();
        System.out.println("Write how many grams of coffee beans you want to add :");
        availableBeans += scfill.nextInt();
        System.out.println("Write how many disposable cups you want to add :");
        availableDisposalCups += scfill.nextInt();

        scfill.close();

    }

    public static void take(){

        System.out.println("I gave you $" + availableMoney);
        availableMoney = 0;
    }

    public static void display(){

        System.out.println("---------------------------------------------------------------------------------------------");
        System.out.println("The coffee machine has:");
        System.out.println(availableWater + " ml of water");
        System.out.println(availableMilk + " ml of milk");
        System.out.println(availableBeans + " g of coffee beans");
        System.out.println(availableDisposalCups + " disposable cups");
        System.out.println("$" + availableMoney + " of money");
        System.out.println("---------------------------------------------------------------------------------------------");
    }
}