Gregorian Calendar program
 

I am trying to execute this program, but I am getting errors
this is the code

import java.util.*;

public class DateUtils

{



static final int MILLS_IN_DAY = 24*60*60*1000;

 

public static Date getCurrentDate()

{

GregorianCalendar currentDate = new GregorianCalendar();

currentDate.set(Calendar.HOUR,0);

currentDate.set(Calendar.MINUTE,0);

currentDate.set(Calendar.SECOND,0);

return currentDate.getTime();

}



public static Date createDate(int year, int month, int day)

{

GregorianCalendar date =  new GregorianCalendar(year,month,day);

return date.getTime();

}





public static Date stripTime(Date date)

{

GregorianCalendar currentDate = new GregorianCalendar();

currentDate.setTime(date);

currentDate.set(Calendar.HOUR,0);

currentDate.set(Calendar.MINUTE,0);

currentDate.set(Calendar.SECOND,0);

return currentDate.getTime();

}





public static int daysDiff(Date date1, Date date2)

{

date1 = stripTime(date1);

date2 = stripTime(date2);

long longDate1=date1.getTime();

long longDate2=date2.getTime();

long longDiff = longDate2 - longDate1;

return (int)(longDiff/MILLS_IN_DAY);



}



 

}

I am testing this with

import java.util.*;

public class Tes{

  public static void main(String[] args) {



GregorianCalendar currentGC =  new GregorianCalendar();

int currentYear = currentGC.get(Calendar.YEAR);

Date currentDate = DateUtils.getCurrentDate();

Date christmas = DateUtils.createDate(currentYear,Calendar.DECEMBER,25);

int daysToChristmas = DateUtils.daysDiff(currentDate, christmas);

DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.LONG);

String formattedDate = dateFormat.format(currentDate);

System.out.println("Today" + formattedDate);

System.out.println("There are"+daysToChristmas);

}

}

The first code compiled fine. But I am having errors with the second one.

Tes.java:11: cannot find symbol

symbol  : class DateFormat

location: class Tes

DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.LONG);

^

Tes.java:11: cannot find symbol

symbol  : variable DateFormat

location: class Tes

DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.LONG);

                                                   ^

Tes.java:11: cannot find symbol

symbol  : variable DateFormat

location: class Tes

DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.LONG);

                        ^

3 errors

How should I correct the 3 errors?

Re: Gregorian Calendar program
 

code is from a text book

Re: Gregorian Calendar program
 

When do you think the compile time error 'symbol not found comes up'? What does your text book say about such errors? The example you posted seems a pretty bold one for someone who has just started out with Java.

Anyways, the error message means that the compiler doesn't know about the token 'DateFormat'; `import' the class in question and you should be good to go.

Re: Gregorian Calendar program
 

Dear Friend, you have to use import java.text.*; since the Format and DateFormat are a part of java.text package. If you do that you won't get any error message.

Re: Gregorian Calendar program
 

Thanks for the help. It is working now. I know that this is pretty bold for a beginner. But I am understanding the concept behind it and I think that by understanding more such programs I will be able to become better with time.

With the internet and helpful communities like these willing to give a helping hand, I am sure I can improve myself.