Examples of Episode 9 of Java Complete Course in Farsi/Persian

Main.java

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

        System.out.println("Enter an integer:");
        int number = in.nextInt();

        boolean isEvenNumber = number % 2 == 0;
        if(isEvenNumber) {
            System.out.printf("The number %d is even!", number);
        }
    }
}

Main2.java

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

        System.out.println("Enter an integer:");
        int number = in.nextInt();

        boolean isEvenNumber = number % 2 == 0;
        if(isEvenNumber) {
            System.out.printf("The number %d is even!", number);
        } else {
		    System.out.printf("The number %d is odd!", number);
		}
    }
}

Main3.java

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

        System.out.print("Enter Day-of-Week: ");
        int dayOfWeek = in.nextInt();
        if (dayOfWeek == 1) {
            System.out.println("Monday");
        } else if (dayOfWeek == 2) {
            System.out.println("Tuesday");
        } else if (dayOfWeek == 3) {
            System.out.println("Wednesday");
        } else if (dayOfWeek == 4) {
            System.out.println("Thursday");
        } else if (dayOfWeek == 5) {
            System.out.println("Friday");
        } else if (dayOfWeek == 6) {
            System.out.println("Saturday");
        } else if (dayOfWeek == 7) {
            System.out.println("Sunday");
        } else {
            System.out.println("Invalid day of week!");
        }
    }
}   

Main4.java

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

        System.out.print("Enter Day-of-Week: ");
        int dayOfWeek = in.nextInt();
        switch (dayOfWeek) {
            case 1:
                System.out.println("Monday");
                break;
            case 2:
                System.out.println("Tuesday");
                break;
            case 3:
                System.out.println("Wednesday");
                break;
            case 4:
                System.out.println("Thursday");
                break;
            case 5:
                System.out.println("Friday");
                break;
            case 6:
                System.out.println("Saturday");
                break;
            case 7:
                System.out.println("Sunday");
                break;
            default:
                System.out.println("Invalid day of week!");
        }
    }
}

Main5.java

public class Main {
    public static void main(String[] args) {
		int dayOfWeek = 3;
        String dayOfWeekName = switch(dayOfWeek) {
            case 1 -> "Monday";
            case 2 -> "Tuesday";
            case 3 -> "Wednesday";
            case 4 -> "Thursday";
            case 5 -> "Friday";
            case 6 -> "Saturday";
            case 7 -> "Sunday";
            default -> "Invalid day of week!";
        };
        System.out.println(dayOfWeekName);
    }
}

Main6.java

public class Main {
    public static void main(String[] args) {
        int dayOfWeek = 3;
        String dayOfWeekName = switch (dayOfWeek) {
            case 1 -> {
                System.out.println("Monday");
                yield "Monday";
            }
            case 2 -> {
                System.out.println("Tuesday");
                yield "Tuesday";
            }
            case 3 -> {
                System.out.println("Wednesday");
                yield "Wednesday";
            }
            case 4 -> {
                System.out.println("Thursday");
                yield "Thursday";
            }
            case 5 -> {
                System.out.println("Friday");
                yield "Friday";
            }
            case 6 -> {
                System.out.println("Saturday");
                yield "Saturday";
            }
            case 7 -> {
                System.out.println("Sunday");
                yield "Sunday";
            }
            default -> {
                System.out.println("Invalid day of week!");
                yield "Invalid day of week!";
            }
        };
        System.out.println("Day of week name after switch: " + dayOfWeekName);
    }
}

Main7.java

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

        System.out.print("Enter Month of the year: ");
        int monthOfYear = in.nextInt();
        switch (monthOfYear) {
            case 1, 2, 3 -> System.out.println("Spring!");
            case 4, 5, 6 -> System.out.println("Summer!");
            case 7, 8, 9 -> System.out.println("Fall!");
            case 10, 11, 12 -> System.out.println("Winter!");
            default -> System.out.println("We only have 4 seasons!");
		}
    }
}

Main8.java

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

        System.out.print("Enter Month of the year: ");
        int monthOfYear = in.nextInt();
        switch (monthOfYear) {
            case 1, 2, 3 -> {
                System.out.println("Spring!");
                System.out.println("Spring is the season of reunions!");
            }
            case 4, 5, 6 -> {
                System.out.println("Summer!");
                System.out.println("Summer is the best season for trip!");
            }
            case 7, 8, 9 -> {
                System.out.println("Fall!");
                System.out.println("Fall is the lovers' season!");
            }
            case 10, 11, 12 -> {
                System.out.println("Winter!");
                System.out.println("Do you like skiing?");
            }
            default -> System.out.println("We only have 4 seasons!");
        }
    }
}