1.通過Date類來(lái)獲取當(dāng)前時(shí)間
Date day=new Date();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(df.format(day));
2.通過System類中的currentTimeMillis方法來(lái)獲取當(dāng)前時(shí)間
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(df.format(System.currentTimeMillis()));
3.通過Calendar類來(lái)獲取當(dāng)前時(shí)間
Calendar c = Calendar.getInstance();//可以對(duì)每個(gè)時(shí)間域單獨(dú)修改
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int date = c.get(Calendar.DATE);
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
int second = c.get(Calendar.SECOND);
System.out.println(year + "/" + month + "/" + date + " " +hour + ":" +minute + ":" + second);
4.通過Date類來(lái)獲取當(dāng)前時(shí)間
Date date = new Date();
String year = String.format("%tY", date);
String month = String.format("%tB", date);
String day = String.format("%te", date);
System.out.println("今天是："+year+"-"+month+"-"+day);
總結(jié)：
設(shè)置時(shí)間格式可通過調(diào)用SimpleDateFormat類進(jìn)行設(shè)置和通過String中的format方法來(lái)設(shè)置酿炸。
可通過Date類和System中的currentTimeMillis來(lái)獲劝独妗！
