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Get first day of week
Posted on: March 13, 2008 at 12:00 AM

In this section, we will learn how to get the first day of week in Java. As we know that GregorianCalendar provides the current date, month and year in a yearly calendar. Use the Calendar subclass for applying in the java program. This calendar is used i

Get first day of week

In this section, we will learn how to get the first day of week in Java. As we know that GregorianCalendar provides the current date, month and year in a yearly calendar. Use the Calendar subclass for applying in the java program. This calendar is used in most of world.

Description of program:

The following program helps us in getting the first day of the week. For getting first day we need an object of GragorianCalendar. With the help of this we calculate the first day of week using the getFirstDayOf Week() and getActualMaximum(Calendar.DAY_OF_WEEK) methods that matches the case. If any of these will match, it will display the actual day that displays like the following output.

Description of code:

getActualMaximum(int field):
This method return the maximum value according to its field. It takes one field like: DAY_OF_WEEK, DAY_OF_MONTH etc.

getFirstDayOfWeek():
This is the method that is used to get the first day of the week.

Here is the code of program:


import java.util.*;



public class FirstDayOfWeek{

  public static void main(String[] args) {

  GregorianCalendar gcal = new GregorianCalendar();

  int week = gcal.getActualMaximum(Calendar.DAY_OF_WEEK);

  System.out.println("Day of week: " + week);

  int first = gcal.getFirstDayOfWeek() ;

  switch(first){

  case 1:

  System.out.println("Sunday");

  break;

  case 2:

  System.out.println("Monday");

  case 3:

  System.out.println("Tuesday");

  case 4:

  System.out.println("Wednesday");

  case 5:

  System.out.println("Thrusday");

  case 6:

  System.out.println("Friday");

  case 7:

  System.out.println("Saturday");

  }

  }

}

Download this example.

Output of program:

C:\vinod\Math_package>javac FirstDayOfWeek.java

C:\vinod\Math_package>java FirstDayOfWeek
Day of week: 7
Sunday

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