时间

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class DateTest {
private Date date;
private Calendar calendar;

public static void main(String[] args) {
DateTest test=new DateTest();
test.initDate();
}

public void initDate(){

date =new Date();
calendar=Calendar.getInstance();
calendar.setTime(date);
//获得当前日期
System.out.println(calendar.get(Calendar.YEAR)+"-"+(calendar.get(Calendar.MONTH)+1)+"-"+calendar.get(Calendar.DAY_OF_MONTH));
//获得当前时间
System.out.println(calendar.get(Calendar.HOUR)+"-"+calendar.get(Calendar.MINUTE)+"-"+calendar.get(Calendar.SECOND));
//获取当前时间秒数
System.out.println(System.currentTimeMillis());
//获得当前具体时间
SimpleDateFormat sp= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(sp.format(new Date()));

}

}

 

打印效果：

2015-11-24
6-51-51
1448362311411
2015-11-24 18:51:51