java 获取当前时间及年月日时分秒

java代码如下：

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));
	}

}

执行结果如下：