Java日期中的“ H”格式类似于0、1、2、3,…23小时。使用SimpleDateFormat(“ H”)获得相同的格式。
//以H格式显示小时 SimpleDateFormat simpleformat = new SimpleDateFormat("H"); String strHour = simpleformat.format(new Date()); System.out.println("Hour in H format = "+strHour);
上面,我们使用了SimpleDateFormat类,因此导入了以下包-
import java.text.SimpleDateFormat;
以下是一个例子-
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("E, dd MMM yyyy HH:mm:ss Z"); System.out.println("Today's date and time = "+simpleformat.format(cal.getTime())); //显示日期 simpleformat = new SimpleDateFormat("dd/MMMM/yyyy"); String str = simpleformat.format(new Date()); System.out.println("Current Date = "+str); //当前时间 simpleformat = new SimpleDateFormat("HH.mm.ss Z"); String strTime = simpleformat.format(new Date()); System.out.println("Current Time = "+strTime); //以H格式显示小时 simpleformat = new SimpleDateFormat("H"); String strHour = simpleformat.format(new Date()); System.out.println("Hour in H format = "+strHour); } }
输出结果
Today's date and time = Mon, 26 Nov 2018 09:56:14 +0000 Current Date = 26/November/2018 Current Time = 09.56.14 +0000 Hour in H format = 9