Manipulating a Date in java

**Linux-Us** · 07-02-2010

Hello,
I have a class attribute of type date, I can retrieve the day, month and year to date I have only seen separately in the API methods that getMonth (), etc. are no longer be used. It should (according to API) use, Calendar.get (Calendar.DAY_OF_MONTH). Can you explain how?
Here is my code

Code:

...
Date dt;
...
Public String toString(){
    return ("Date:" + MyDate.getMonth());
...
}

I need a help in manipulating date in java. Any explanation will be appreciated.

**SoftWore** · 07-02-2010

Hello,
Just have a look at the sample code, it is a simple code. It will be better for your understanding.

Code:

GregorianCalendar foe = new GregorianCalendar();
foe.setTime( unObjetDate );
 
int month = foe.get(GregorianCalendar.MONTH);
int year = foe.get(GregorianCalendar.YEAR);
int day = foe.get(GregorianCalendar.DAY_OF_MONTH);

Hope this will help you.

**Linux-Us** · 07-02-2010

Hello,
I have another question, always on my dates. I get a date as "dd / MM / YYYY" (String), I must first convert the Date type (I must) and then display it separately. Here is my piece of code:

Code:

DateFormat dtf = new SimpleDateFormat("dd / MM / yyyy");
Date d = dtf.parse("22/03/2008");
...
GregorianCalendar geo = new GregorianCalendar();
geo.setTime(d);
int month = geo.get(GregorianCalendar.MONTH);
int year = geo.get(GregorianCalendar.YEAR);
int day = geo.get(GregorianCalendar.DAY_OF_MONTH);
...
System.out.System.out.println("Day" + + Day "Month" Month + + "Year" + Year);

The display of the day and year is correct but the display of the month is always smaller than 1! In this case, the displayed month is 02 ... Do you know where is the problem? Thanks in advance.

**GlassFish** · 07-02-2010

Hello,
Just have a look at the following code.

Code:

public class Example
{
public static final String dt = "dd-MM-yyyy HH:mm:ss";

// public static String now()
//{
// Calendar c = Calendar.getInstance();
// SimpleDateFormat s = new SimpleDateFormat(dt);
// return s.format(c.getTime());
//}
public static void main(String[] args)

{
//Step1:Getting Time Zone "country"
Calendar c = Calendar.getInstance();
String tmzn = c.getTimeZone().getDisplayName();
System.out.println("tmzn is : " + tmzn );

//Step2:Getting Time in Milli Seconds
System.out.println("Current Time in MiliSeconds : " + c.getTimeInMillis() );

//Step3:Getting current time in date format

//Calendar c = Calendar.getInstance();
SimpleDateFormat s = new SimpleDateFormat(dt);

String time=s.format(c.getTime());
System.out.println(time);
// System.out.println("Now : " + Example.now());
}

}

**SoftWore** · 07-02-2010

Hello,
This is another sample code for you.

Code:

import java.text.SimpleDateFormat;
import java.util.Date;
public class DateExample2 {
 
    public static void main(String[] args) {
 
        SimpleDateFormat simdt =
            new SimpleDateFormat("EEEE-MMMM-dd-yyyy");
 
        Date dt = new Date();
 
        System.out.println(simdt.format(dt));
    }
}