07. Working Hours

import java.util.Scanner;

public class  WorkingHours {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int hour = Integer.parseInt(scanner.nextLine());
        String day = scanner.nextLine();

        if (hour >= 10 && hour <= 18) {
            switch (day) {
                case "Monday":
                case "Tuesday":
                case "Wednesday":
                case "Thursday":
                case "Friday":
                case "Saturday":
                    System.out.println("open");
                    break;
                default:
                    System.out.println("closed");
                    break;
            }
        } else {
            System.out.println("closed");
        }
    }
}

ИЛИ:

import java.util.Arrays;
import java.util.Scanner;

public class  WorkingHours {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int hour = Integer.parseInt(scanner.nextLine());
        String day = scanner.nextLine();

        String[] workingDays = new String[]{"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

        System.out.println(hour >= 10 && hour <= 18 && Arrays.toString(workingDays).contains(day) ? "open" : "closed");
    }
}