Java получить разницу в году между двумя датами
@Test
public void givenTwoDatesBeforeJava8_whenDifferentiating_thenWeGetSix()
throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy", Locale.ENGLISH);
Date firstDate = sdf.parse("06/24/2017");
Date secondDate = sdf.parse("06/30/2017");
long diffInMillies = Math.abs(secondDate.getTime() - firstDate.getTime());
long diff = TimeUnit.DAYS.convert(diffInMillies, TimeUnit.MILLISECONDS);
assertEquals(6, diff);
}
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