Display the day in week using SimpleDateFormat('E') in Java

To display the day in week, use the SimpleDateFormat(“E”) as shown below −

Format f = new SimpleDateFormat("E");
String strDayinWeek = f.format(new Date());
System.out.println("Day in week = "+strDayinWeek);

Since, we have used the Format and SimpleDateFormat class above, therefore import the following packages. With that, we have also used the Date.

import java.text.Format;
import java.text.SimpleDateFormat;
import java.util.Date;

Example

 Live Demo

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("dd/MMMM/yyyy hh:mm:s");
      System.out.println("Today's date = "+simpleformat.format(cal.getTime()));
      // current time
      Format f = new SimpleDateFormat("HH.mm.ss Z");
      String strResult = f.format(new Date());
      System.out.println("Time = "+strResult);
      // displaying two-digit day number
      f = new SimpleDateFormat("dd");
      String strDay = f.format(new Date());
      System.out.println("Day Number = "+strDay);
      // displaying day in week
      f = new SimpleDateFormat("E");
      String strDayinWeek = f.format(new Date());
      System.out.println("Day in week = "+strDayinWeek);
      // displaying hour
      f = new SimpleDateFormat("H");
      String strHour = f.format(new Date());
      System.out.println("Current Hour = "+strHour);
      // displaying minutes
      f = new SimpleDateFormat("mm");
      String strMinute = f.format(new Date());
      System.out.println("Current Minutes = "+strMinute);
      // displaying seconds
      f = new SimpleDateFormat("ss");
      String strSeconds = f.format(new Date());
      System.out.println("Current Seconds = "+strSeconds);
   }
}

Output

Today's date = 26/November/2018 09:02:39
Time = 09.02.39 +0000
Day Number = 26
Day in week = Mon
Current Hour = 9
Current Minutes = 02
Current Seconds = 39