public class DataString {
    private static String mYear;
    private static String mMonth;
    private static String mDay;
    private static String mWay;
    
	public static String StringData(){
		final Calendar c = Calendar.getInstance();
		c.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
		mYear = String.valueOf(c.get(Calendar.YEAR)); // 獲取當前年份
		mMonth = String.valueOf(c.get(Calendar.MONTH) + 1);// 獲取當前月份
		mDay = String.valueOf(c.get(Calendar.DAY_OF_MONTH));// 獲取當前月份的日期號碼
		mWay = String.valueOf(c.get(Calendar.DAY_OF_WEEK));
		if("1".equals(mWay)){
			mWay ="天";
		}else if("2".equals(mWay)){
			mWay ="一";
		}else if("3".equals(mWay)){
			mWay ="二";
		}else if("4".equals(mWay)){
			mWay ="三";
		}else if("5".equals(mWay)){
			mWay ="四";
		}else if("6".equals(mWay)){
			mWay ="五";
		}else if("7".equals(mWay)){
			mWay ="六";
		}
		return mYear + "年" + mMonth + "月" + mDay+"日"+"/星期"+mWay;
	}
	
}
 

第一種方法

SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");// HH:mm:ss
//獲取當前時間
Date date = new Date(System.currentTimeMillis());
time1.setText("Date獲取當前日期時間"+simpleDateFormat.format(date));

第二種方法

Calendar calendar = Calendar.getInstance();
//獲取系統的日期
//年
int year = calendar.get(Calendar.YEAR);
//月
int month = calendar.get(Calendar.MONTH)+1;
//日
int day = calendar.get(Calendar.DAY_OF_MONTH);
//獲取系統時間
//小時
int hour = calendar.get(Calendar.HOUR_OF_DAY);
//分鐘
int minute = calendar.get(Calendar.MINUTE);
//秒
int second = calendar.get(Calendar.SECOND);

time2.setText("Calendar獲取當前日期"+year+"年"+month+"月"+day+"日"+hour+":"+minute+":"+second);
 

第三種方法

Time t=new Time(); // or Time t=new Time("GMT+8"); 加上Time Zone資料。
t.setToNow(); // 取得系統時間。
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獲取當前日期"+year+"年"+month+"月"+day+"日"+hour+":"+minute+":"+second);
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