第一种方法
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");// HH:mm:ss
//获取当前时间
Date date = new Date(System.currentTimeMillis());
time1.setText("Date获取当前日期时间"+simpleDateFormat.format(date));
第二种方法Calendar calendar = Calendar.getInstance();
//年
int year = calendar.get(Calendar.YEAR);
//月
int month = calendar.get(Calendar.MONTH)+1;
//日
int day = calendar.get(Calendar.DAY_OF_MONTH);
//获取系统时间
//小时
int hour = calendar.get(Calendar.HOUR_OF_DAY);
//分钟
int minute = calendar.get(Calendar.MINUTE);
//秒
int second = calendar.get(Calendar.SECOND);
time2.setText("Calendar获取当前日期"+year+"年"+month+"月"+day+"日"+hour+":"+minute+":"+second);
第三种方法Time t=new Time(); // or Time t=new Time("GMT+8"); 加上Time Zone资料。
Time time = new Time();
time.setToNow();// 设置当前时间
int year = t.year;
int month = t.month+1;
int day = t.monthDay;
int hour = t.hour; // 0-23
int minute = t.minute;
int second = t.second;
time3.setText("Calendar获取当前日期"+year+"年"+month+"月"+day+"日"+hour+":"+minute+":"+second);
**细心的可能发现月份要加上1，这个是因为是0开始计算的，所以用时要加上1。第一次接触Android的可能最后一个看不懂，time1,time2 ,time3是TextView的对象记得用时需要初始化下
import java.text.Format;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class KXX {
public static void main(String[] args) {
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd");
Date today = new Date();
System.out.println("今天是:" + f.format(today));
Calendar c = Calendar.getInstance();
c.setTime(today);
c.add(Calendar.DAY_OF_MONTH, 1);// 今天+1天
Date tomorrow = c.getTime();
System.out.println("明天是:" + f.format(tomorrow));
}
}
/*
* 将时间转换为时间戳
*/
public static long dateToStamp(String s) throws ParseException {
String res;
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = simpleDateFormat.parse(s);
long ts = date.getTime();
res = String.valueOf(ts);
return ts;
}
/*
* 将时间戳转换为时间
*/
public static String stampToDate(String s){
String res;
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
long lt = new Long(s);
Date date = new Date(lt);
res = simpleDateFormat.format(date);
return res;
}
/**
* long转换时分秒
* @param l
* @return
*/
public static String formatLongToTimeStr(Long l) {
int hour = 0;
int minute = 0;
int second = 0;
second = l.intValue() ;
if (second > 60) {
minute = second / 60; //取整
second = second % 60; //取余
}
if (minute > 60) {
hour = minute / 60;
minute = minute % 60;
}
String strTime = hour+":"+minute+":"+second;
return strTime;
}