Is it possible to print a certain string base on LocalDateTime in java?

Question

So i use localdatetime to get current time . I want it to print "Good night" when it is morning and "Good night" if it night base on localdatetime . I did find about isBefore() . I also did find some example but it is for date . I need some example .I am sorry if my question is not clear .

LocalDateTime localDate = LocalDateTime.now();
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd MMM YYYY , h:mm a");

Answer 1

You can use localDate.getHour() to get current hour of day and use hour to print greeting message. Check below code -

private void printGrretingMessage()
{
    LocalDateTime currentDateTime = LocalDateTime.now();
    int hour = currentDateTime.getHour();

    if ( hour < 10 ) {
        System.out.println( "Good Morning" );
    } else if ( hour < 16 ) {
        System.out.println( "Good Afternoon" );
    } else if ( hour < 20 ) {
        System.out.println( "Good Evening" );
    } else {
        System.out.println( "Good Night" );
    }
}

I hope this works for you. :-)