JAVA 获取当前时间及年月日时分秒

package test;
 
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
 
public class Test {
 
    public static void main(String[] args) {
        Calendar now = Calendar.getInstance();
        System.out.println("年：" + now.get(Calendar.YEAR));
        System.out.println("月：" + (now.get(Calendar.MONTH) + 1));
        System.out.println("日：" + now.get(Calendar.DAY_OF_MONTH));
        System.out.println("时：" + now.get(Calendar.HOUR_OF_DAY));
        System.out.println("分：" + now.get(Calendar.MINUTE));
        System.out.println("秒：" + now.get(Calendar.SECOND));
 
        Date d = new Date();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        System.out.println("当前时间：" + sdf.format(d));
    }
 
}