Year vs WeekYear

Year_vs_WeekYear.java

import java.util.*;
import java.text.SimpleDateFormat;
import java.util.Locale;

public class DstAndLeapSecondsTest{
	
	public static void main(String[] args){
		
		Calendar start, old, curr;
		long diff;
		
		start = Calendar.getInstance(Locale.GERMANY);
		start.set(Calendar.YEAR, 2010);
		start.set(Calendar.MONTH, Calendar.DECEMBER);
		start.set(Calendar.DAY_OF_MONTH, 1);
		start.set(Calendar.HOUR_OF_DAY,12 );
		start.set(Calendar.MINUTE, 0);
		start.set(Calendar.SECOND, 0);
		start.set(Calendar.MILLISECOND, 0);
		
		SimpleDateFormat df = new SimpleDateFormat("dd.MM.yyyy");
      
		old = (Calendar)start.clone();
		//old.setTimeZone(TimeZone.getTimeZone("Europe/Berlin"));
      
		System.out.println("set - " + old.getTimeZone().getDisplayName());
		for (int i = 0; i <= 10000; i++){
          if( old.get(Calendar.YEAR) != old.getWeekYear() ){
			System.out.println(df.format(old.getTime()) + " week " + old.get(Calendar.WEEK_OF_YEAR) +  " year " + old.get(Calendar.YEAR) +  " weekyear " + old.getWeekYear());
        }
          old.add(Calendar.DAY_OF_MONTH,1);
		}
		
	}
}