Java获得系统当前年份 日期

public class TestClass { 

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

public void getYear2(){ 
   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); 
} 

    public static void main(String[] args){ 
    TestClass TestClass = new TestClass(); 
    
    TestClass.getYear2(); 
   System.out.println(); 
    TestClass.getYear(); 
    } 
}