Java日期中的“ kk”格式用于将小时格式设置为01-24。使用SimpleDateFormat(“ kk”)获取相同的格式。
//以kk格式显示小时 SimpleDateFormat simpleformat = new SimpleDateFormat("kk"); String strHour = simpleformat.format(new Date()); System.out.println("Hour in kk 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"); System.out.println("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"); String strTime = simpleformat.format(new Date()); System.out.println("Current Time = "+strTime); //以kk格式显示小时 simpleformat = new SimpleDateFormat("kk"); String strHour = simpleformat.format(new Date()); System.out.println("Hour in kk format = "+strHour); } }
输出结果
Date and time = Mon, 26 Nov 2018 10:08:12 Current Date = 26/November/2018 Current Time = 10.08.12 Hour in kk format = 10