Android获取系统时间

一、使用Calendar(日历)类

Calendar calendar=Calendar.getInstance();

int year=calendar.get(Calendar.YEAR);
int month=calendar.get(Calendar.MONTH);
int day_Of_Month=calendar.get(Calendar.DAY_OF_MONTH);
int hour=calendar.get(Calendar.HOUR);
int hour_Of_Day=calendar.get(Calendar.HOUR_OF_DAY);
int minute=calendar.get(Calendar.MINUTE);
int second=calendar.get(Calendar.SECOND);

//Log.d("OK","year:"+year+" month:"+month+" day_Of_Month:"+day_Of_Month+" hour:"+hour+" hour_Of_Day:"+hour_Of_Day+" minute:"+minute+" second:"+second);

//显示格式为  year:2023 month:9 day_Of_Month:19 hour:3 hour_Of_Day:15 minute:16 second:17

二、使用Date(日期)类

Date date=new Date();

String dateStr=date.toLocaleString();

//Log.d("OK",dateStr);

//显示格式为  Oct 19, 2023 15:09:22