Java acquisition date

public class TestMain {
	
	public static void main(String[] args) {
	     //1、普通的时间转换
	     String string = new SimpleDateFormat("yyyy-MM-dd").format(new Date()).toString();
		 System.out.println(string);
		 System.out.println("-------------------------------");
         //2、日历类的时间操作
		 Calendar calendar = Calendar.getInstance(); 
		 System.out.println(calendar.get(Calendar.YEAR)); 
		 System.out.println(calendar.get(Calendar.MONTH)+1);
		 System.out.println(calendar.get(Calendar.DATE)); 

	}
}

Output:

2019-06-17
-------------------------------
2019
6
17