Date Format For Google Classroom API ScheduledTime-CodePudding

I'm trying to set the scheduled time when creating an assignment using the Google Classroom API. However, I'm confused about which date format is needed. By the error messages, it seems to accept a string which holds a timestamp and a timezone or Z at the end. Among others, I've tried using System.currentTimeMillis() "Z", as well as googleDate.getValue() "Z", googleDate.getValue() since Google Date format seems to be the way to go based on

And this using the Google date instead.

And this with the new Java 8 apis

CodePudding user response：

java.time

I recommend that you use java.time, the modern Java date and time API, for your date and time work. The following code gives the same result as the code from your answer.

    LocalDate localDate = LocalDate.now().plusDays(7);
    String s = localDate.atStartOfDay(ZoneId.systemDefault())
            .format(DateTimeFormatter.ISO_OFFSET_DATE_TIME);
    System.out.println(s);

Output in my time zone today:

2021-10-20T00:00:00 02:00

Compared to your own answer you have fewer conversions, and you are freed from writing your own format pattern string since the formatter we need is built in.

CodePudding user response：

This worked:

LocalDate localDate = LocalDate.now().plusDays(7);
                    java.util.Date date1 = java.util.Date.from(localDate.atStartOfDay()
                                    .atZone(ZoneId.systemDefault())
                                    .toInstant());

                    String s = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX").format(date1);

It seems the imports were using the Google Date class instead of java.util.date.