The top is the class for the main function (error) and
The classes below are for reference types.
I want to upload the captured image here, but it's not going up well, so if I were to write it,
Drinks = new Drinks [100]; there's a red line on the drinks on this side and on the drinks on the bottom.
When you put the mouse cursor on the drinks,
dirnks cannot be resolved to a varible 5quick fixes available Create local variable 'drinks' Create field 'drinks' Create parameter 'drinks' Remove assignment Change to 'Drink'
That's what it says. It worked well when I was writing the main function.
drinks[userChoice-1]!= null There was an error when writing this part (it may have occurred before this, but I couldn't check it)
Even if you erase this part, the red line remains.
I'd appreciate it if you could tell me the solution.
```package ex02;
import java.util.Scanner;
public class VendingMachineProgram {
// main thread
public static void main(String[] args) {
boolean flag = true;
final int END = 0;
final int BUY = 1;
final int MANAGE = 2;
Scanner sc = new Scanner(System.in);
int userChoice = -1;
int
Drink[] drinks = new Drink[100];
VendingMachine vendingMachine1 = new VendingMachine(1, drinks, 5_000);
drinks[0] = new Pet("(Pet) Coca-Cola 500 ml", 1500, 20);
drinks[1] = new Pet ("Pet) Coca-Cola Zero 500 ml", 1300, 20);
drinks[2] = new Pet ("Pet) Pepsi Cola 500 ml", 1300, 20);
drinks[3] = new Pet ("Pet) Pepsi Cola Zero Lime Sugar Fragrance 500 ml", 1300, 20);
drinks[4] = new Pet("((Can) Coca-Cola 250 ml", 1000, 20);
drinks[5] = new Pet ("(Can) Coca-Cola Zero 250 ml", 900, 20);
drinks[6] = new Pet("(Can) Pepsi Cola 250ml",900,20);
drinks[7] = new Pet("(Can) Pepsi Cola Zero Lime Sugar Fragrance 250 ml", 900, 20);
drinks[8] = new tea ("milk coffee", 400, 100);
drinks[9] = new tea ("luxury coffee", 500, 100);
drinks[10] = new Tea ("Yulmucha", 400, 100);
while (flag) {
System.out.println("Welcome. Please select the purpose of use.");
System.out.println ("1.Beverage Purchase\t2.Vending Machine Management\t0.Out");
userChoice = sc.nextInt();
if (userChoice == BUY) {
showInfo(drinks);
System.out.println ("Enter the drink number to purchase").
userChoice = sc.nextInt();
if(drinks[userChoice - 1] != null) {
System.out.println("Select quantity to purchase");
}else {
System.out.println("You entered the wrong drink number.");
}
} } else if (userChoice == MANAGE) {
} } else if (userChoice == END) {
System.out.println("End of vending machine usage. Goodbye.");
flag = false;
} } else {
System.out.println() entered incorrectly. Please re-enter ");
}
}//end of while
}// }// end of main
static void showInfo(Drink[] drinks) {
for(int i = 0; i < drinks.length; i++) {
if(drinks[i] != null) {
System.out.println("***" + (i + 1) + "Burn Beverage**");
drinks[i].showInfo();
System.out.println("=====================");
}
}
}
}// end of class
```package ex02;
public abstract class Drink {
private String name;
private int price;
public Drink(String name, int price) {
this.name = name;
this.price = price;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
protected abstract void showInfo();
}
package ex02;
public class Pet extends Drink {
private int amount;
public Pet(String name, int price, int amount) {
super(name, price);
this.amount = amount;
}
public int getAmount() {
return amount;
}
public void setAmount(int amount) {
this.amount = amount;
}
public void takeOut(int amount) {
this.amount -= amount;
System.out.println();
}
@Override
public void showInfo() {
System.out.println("음료명: " + this.getName());
System.out.println("가격: " + this.getPrice());
System.out.println("Amount remaining: " + amount + ");
}
}
package ex02;
public class Can extends Drink {
private int amount;
public Can(String name, int price, int amount) {
super(name, price);
this.amount = amount;
}
public int getAmount() {
return amount;
}
public void setAmount(int amount) {
this.amount = amount;
}
public void takeOut(int amount) {
this.amount -= amount;
System.out.println();
}
public void showInfo() {
System.out.println("음료명: " + this.getName());
System.out.println("가격: " + this.getPrice());
System.out.println("Amount remaining: " + amount + ");
}
}
package ex02;
import java.util.Random;
public class Tea extends Drink {
private int capacity;
public Tea(String name, int price, int capacity) {
super(name, price);
this.capacity = capacity;
}
public int getCapacity() {
return capacity;
}
public void setCapacity(int capacity) {
this.capacity = capacity;
}
static int teaSpoon() {
Random random = new Random();
int teaSpoon = random.nextInt(3) + 4;
return 0;
}
public void takeOut(int amount) {
for (int i = 0; i < amount; i++) {
this.capacity -= teaSpoon();
System.out.println();
}
}
@Override
public void showInfo() {
System.out.println("음료명: " + this.getName());
System.out.println("가격: " + this.getPrice());
System.out.println("Mix remaining: " + capacity + "g");
}
}// }// end of class
package ex02;
public class VendingMachine {
private int id;
Private Drinks; // Drinks in it
private int water; // Tea용 물
private int money; // proceeds
public VendingMachine(int id, Drink[] drinks, int water) {
this.id = id;
this.drinks = drinks;
this.water = water;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public Drink[] getDrinks() {
return drinks;
}
public void setDrinks(Drink[] drinks) {
this.drinks = drinks;
}
public int getWater() {
return water;
}
public void setWater(int water) {
this.water = water;
}
public int getMoney() {
return money;
}
public void setMoney(int money) {
this.money = money;
}
public void showInfo() {
System.out.println("Vending machine number: " + id);
System.out.println("remaining bottled water:" + water + "ml";
System.out.println("수익금: " + money);
System.out.println("");
}
}
If you look closely at the Vending Machine Program
class, the grammar is incorrect.
int Drink[] drinks = new Drink[100];
You wrote this.
If you can't find where int
is, look at the upper line a little bit. Only int
is placed.
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