在Java中使用SimpleDateFormat（'d'）显示日期
要显示日期，请使用SimpleDateFormat（'d'），如下所示-
Format f = new SimpleDateFormat("d");
String strDay = f.format(new Date());
System.out.println("Day Number = "+strDay);由于我们已经使用了上面的Format和SimpleDateFormat类，因此导入以下软件包。这样，我们还使用了Date-
import java.text.Format; import java.text.SimpleDateFormat; import java.util.Date;
以下是一个例子-
示例
import java.text.Format;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Calendar;
public class Demo {
public static void main(String[] args) throws Exception {
//显示当前日期和时间
Calendar cal = Calendar.getInstance();
SimpleDateFormat simpleformat = new SimpleDateFormat("dd/MMMM/yyyy hh:mm:s");
System.out.println("Today's date = "+simpleformat.format(cal.getTime()));
//当前时间
Format f = new SimpleDateFormat("HH.mm.ss Z");
String strResult = f.format(new Date());
System.out.println("Time = "+strResult);
//显示天数
f = new SimpleDateFormat("d");
String strDay = f.format(new Date());
System.out.println("Day Number = "+strDay);
//显示小时
f = new SimpleDateFormat("H");
String strHour = f.format(new Date());
System.out.println("Current Hour = "+strHour);
//显示分钟
f = new SimpleDateFormat("mm");
String strMinute = f.format(new Date());
System.out.println("Current Minutes = "+strMinute);
//显示秒
f = new SimpleDateFormat("ss");
String strSeconds = f.format(new Date());
System.out.println("Current Seconds = "+strSeconds);
}
}输出结果
Today's date = 26/November/2018 08:57:31 Time = 08.57.31 +0000 Day Number = 26 Current Hour = 8 Current Minutes = 57 Current Seconds = 31