Java只获取系统时间的年份

public static String getYear(){
     Calendar ca = Calendar.getInstance();
     ca.setTime(new java.util.Date());
     String year = ""+ca.get(Calendar.YEAR);
     return year;
}

public void getYear(){
   Calendar ca = Calendar.getInstance();
   ca.setTime(new java.util.Date());
   SimpleDateFormat simpledate = new SimpleDateFormat("yyyyMMdd");
   String date = simpledate.format(ca.getTime());
   int year   = ca.get(Calendar.YEAR);
   int month = ca.get(Calendar.MONTH);
   int day    = ca.get(Calendar.DAY_OF_MONTH);
   System.out.println(date+"||"+year+"||"+month+"||"+day);
}