在 Java 中使用 SimpleDateFormat 来设置星期几格式
E 格式用于 Java 中的 Date 设定星期几的格式,例如周一、周二、周三等。让我们使用它。
// displaying day of week SimpleDateFormat simpleformat = new SimpleDateFormat("E"); String strDayofWeek = simpleformat.format(new Date()); System.out.println("Day of Week = "+strDayofWeek);
上面,我们使用了 SimpleDateFormat 类,因此导入了以下程序包 −
import java.text.SimpleDateFormat;
以下是一个示例 −
范例
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 { // displaying current date and time 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())); // displaying date simpleformat = new SimpleDateFormat("dd/MMMM/yyyy"); String str = simpleformat.format(new Date()); System.out.println("Current Date = "+str); // displaying day of week simpleformat = new SimpleDateFormat("E"); String strDayofWeek = simpleformat.format(new Date()); System.out.println("Day of Week = "+strDayofWeek); // current time simpleformat = new SimpleDateFormat("HH.mm.ss Z"); String strTime = simpleformat.format(new Date()); System.out.println("Current Time = "+strTime); } }
输出
Today's date and time = Mon, 26 Nov 2018 09:37:56 +0000 Current Date = 26/November/2018 Day of Week = Mon Current Time = 09.37.56 +0000
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