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);
}