02. Weekend or Working Day

import java.util.Objects;
import java.util.Scanner;

public class WeekendOrWorkingDay {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String day = scanner.nextLine();

        if (Objects.equals(day, "Monday")
                || Objects.equals(day, "Tuesday")
                || Objects.equals(day, "Wednesday")
                || Objects.equals(day, "Thursday")
                || Objects.equals(day, "Friday")) {
            System.out.println("Working day");
        } else if (Objects.equals(day, "Saturday")
                || Objects.equals(day, "Sunday")) {
            System.out.println("Weekend");
        } else {
            System.out.println("Error");
        }
    }
}

Решение със switch:

import java.util.Scanner;

public class WeekendOrWorkingDay {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String day = scanner.nextLine();

        switch (day) {
            case "Monday":
            case "Tuesday":
            case "Wednesday":
            case "Thursday":
            case "Friday":
                System.out.println("Working day");
                break;
            case "Saturday":
            case "Sunday":
                System.out.println("Weekend");
                break;
            default:
                System.out.println("Error");
                break;
        }
    }
}