GregorianCalendar in Codename One

[Andrew Cameron]

I am trying to use some existing code with Codename one.

I need to be able to duplicate the following 

private final long BASE_TIME = new GregorianCalendar(2010, 1, 1).getTimeInMillis();

How must I define BASE_TIME in a Codename One App  so that it will function the same as the code above?

[Shai Almog]

You need to used Calendar.getInstance() instead of GregorianCalendar.

With Calendar you can do something like this (writing from memory so might have compilation issues):

Calendar cld = Calendar.getInstance();

cld.set(Calendar.YEAR, 2010);

cld.set(Calendar.MONTH, Calendar.JANUARY);

cld.set(Calendar.DAY_OF_MONTH, 1);

long time = cal.getTime().getTime();

[Andrew Cameron]

Unfortunately the example code you gave me  gives a value that changes every time.

I have changed it to use the following as the value calculated in Java seems to be a constant and gives me the value below.

  private final long BASE_TIME = 1265004000000L;

[Shai Almog]

You can also explicitly set the hour, minute, second and millisecond to get the same result. There are some new methods in DateUtil that might help.

[Andrew Cameron]

I was able to get it to duplicate the behaviour by using something like

    Calendar cld = Calendar.getInstance();

    cld.set(Calendar.YEAR,2010);

    cld.set(Calendar.MONTH,1);

    cld.set(Calendar.DAY_OF_MONTH,1);

    cld.set(Calendar.HOUR_OF_DAY,0);

    cld.set(Calendar.HOUR,0);

    cld.set(Calendar.MINUTE,0);

    cld.set(Calendar.SECOND,0);

    cld.set(Calendar.MILLISECOND,0);

    cld.set(Calendar.AM_PM,0);

    final long BASE_TIME = cld.getTime().getTime();

On Thursday, September 17, 2020 at 6:31:26 PM UTC-5, Andrew Cameron wrote: