Question

set calendar date

Asked by: Tchuki

Hey,

I am trying to set the month of a calendar but having an issue with it that I hope you folks can resolve.


// booking class file
Calendar cal = new GregorianCalendar();
   
    // get current date info
    int currDay = cal.get(Calendar.DATE);
    int currMonth = cal.get(Calendar.MONTH)+1;
    int currYear = cal.get(Calendar.YEAR);

    // line below causing error, asking for identifier
    cal.set(Calendar.MONTH, 1);
   
    int daysInMonth = cal.getActualMaximum(Calendar.DAY_OF_MONTH);


Tried all sorts of alternatives and examples from EE and google but with no success, I just appear to be going in circles.  Can anybody help ?

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Asked On
2007-07-19 at 11:19:12ID22707832
Tags

calendar

,

date

,

set

Topic

Java Programming Language

Participating Experts
3
Points
500
Comments
13

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Answers

 

by: CEHJPosted on 2007-07-19 at 11:23:10ID: 19524657

There's nothing wrong with the code you posted if you have the correct imports. Any error is elsewhere

 

by: TchukiPosted on 2007-07-19 at 11:28:47ID: 19524714

The imports in that class file are:

import javax.swing.*;
import java.util.*;

I am using JBuilder 2005 aswell, could that make any difference ?

 

by: sunray_2003Posted on 2007-07-19 at 11:39:23ID: 19524818

Calendar's set method manipulates a particular field of a claendar and sets it with the value supplied in the methos. Code looks perfectly fine to me and it should run without any issues.

 

by: CEHJPosted on 2007-07-19 at 11:43:35ID: 19524859

What does

System.out.println(System.getProperty("java.version"));

give you?

 

by: TchukiPosted on 2007-07-19 at 11:49:29ID: 19524917

>> System.out.println(System.getProperty("java.version"));


null

 

by: CEHJPosted on 2007-07-19 at 11:52:53ID: 19524952

Then try

System.out.println(System.getProperty("java.vm.version"));

 

by: TchukiPosted on 2007-07-19 at 11:55:29ID: 19524972

1.4.2_04-b05

 

by: CEHJPosted on 2007-07-19 at 12:05:29ID: 19525058

Please look again at the line that's meant to be in error. The code you posted is fine

 

by: TchukiPosted on 2007-07-19 at 12:09:37ID: 19525109

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;

public class ebh {
   
    booking myBooking = new booking();
   
    public static void main(String args[]) {
       
        ebh myEbh = new ebh();
       
        int currDay = myEbh.myBooking.returnDay();
        int currMonth = myEbh.myBooking.returnMonth();
        int currYear = myEbh.myBooking.returnYear();
        int daysInMonth = myEbh.myBooking.returnDaysInMonth();
       
        JOptionPane.showMessageDialog(null, "Date: " + daysInMonth, "Calendar Test", JOptionPane.INFORMATION_MESSAGE);
        System.exit(0);
       
    }

   
}


import javax.swing.*;
import java.util.*;

public class booking {
   
    Calendar cal = new GregorianCalendar();
   
    // get current date info
    int currDay = cal.get(Calendar.DATE);
    int currMonth = cal.get(Calendar.MONTH)+1;
    int currYear = cal.get(Calendar.YEAR);

    // error on line below <identifier> expected
    cal.set(Calendar.MONTH, 1);

    int daysInMonth = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
   

    public int returnDaysInMonth() {
        return daysInMonth;
    }
    // booking start date info
   
    // booking end date info
   
    // temp duration
    int duration = 5;
   
    public int returnDay() {
        return currDay;
    }
   
    public int returnMonth() {
        return currMonth;
    }
   
    public int returnYear() {
        return currYear;
    }

}

 

by: CEHJPosted on 2007-07-19 at 13:05:41ID: 19525622

Context is everything ;-) The code should be in a method:

class booking {
   
    Calendar cal = new GregorianCalendar();

    private int currDay;
    private int currMonth;
    private int currYear;
    private int daysInMonth;
   
    public booking() {
                  currDay = cal.get(Calendar.DATE);
                  currMonth = cal.get(Calendar.MONTH)+1;
                  currYear = cal.get(Calendar.YEAR);
                  cal.set(Calendar.MONTH, 1);
                  daysInMonth = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
            }
   

    public int returnDaysInMonth() {
        return daysInMonth;
    }
    // booking start date info
   
    // booking end date info
   
    // temp duration
    int duration = 5;
   
    public int returnDay() {
        return currDay;
    }
   
    public int returnMonth() {
        return currMonth;
    }
   
    public int returnYear() {
        return currYear;
    }

}

 

by: VenabiliPosted on 2007-07-19 at 13:09:37ID: 19525659

cal.set(Calendar.MONTH, 1); is setting the month to February. Is this what you try to do?

For the error - you need to put the code in a constructpr. Something like

public booking(){
cal.set(Calendar.MONTH, 1);
}

You can declare variables out of methods but you cannot call methods

 

by: VenabiliPosted on 2007-07-19 at 13:10:03ID: 19525662

I had to press refresh :)
CEHJ got it before me :)

 

by: TchukiPosted on 2007-07-19 at 13:32:50ID: 19525841

Superb, thanks to both of you.

If its OK with you both I will split the points.  Majority to CEHJ seeing as he tipped you to the line Venabili im afraid but your suggestion was very similar.

:)

20120131-EE-VQP-002

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