Java.util.Calendar

Where can i find examples for java.util.Calendar
can someone please tell me ^^
Thanks a lot

take a look at
java.util.GregorianCalendar
maybe its this you need ...

Similar Messages

Why not Deprecate java.util.Date and java.util.Calendar

With the introduction of java.time, why did you not flag java.util.Date and java.util.Calendar. These classes have been a bane to every Java developer and should never be used again with the introduction of Java 1.8.

Adding the @Deprecated annotation would only just provide a warning about an old API and recommendation to the developer(s) to no longer use it. Doing so would not break any existing library out there; in fact quite a number of constructors and methods on the Date class have already been flagged deprecated.
The new java.time package is far superior to Date/Calendar.

Java.sql.Date vs java.util.Date vs. java.util.Calendar

All I want to do is create a java.sql.Date subclass which has the Date(String) constructor, some checks for values and a few other additional methods and that avoids deprecation warnings/errors.
I am trying to write a wrapper for the java.sql.Date class that would allow a user to create a Date object using the methods:
Date date1 = new Date(2003, 10, 7);ORDate date2 = new Date("2003-10-07");I am creating classes that mimic MySQL (and eventually other databases) column types in order to allow for data checking since MySQL does not force checks or throw errors as, say, Oracle can be set up to do. All the types EXCEPT the Date, Datetime, Timestamp and Time types for MySQL map nicely to and from java.sql.* objects through wrappers of one sort or another.
Unfortunately, java.sql.Date, java.sql.Timestamp, java.sql.Time are not so friendly and very confusing.
One of my problems is that new java.sql.Date(int,int,int); and new java.util.Date(int,int,int); are both deprecated, so if I use them, I get deprecation warnings (errors) on compile.
Example:
public class Date extends java.sql.Date implements RangedColumn {
public static final String RANGE = "FROM '1000-01-01' to '8099-12-31'";
public static final String TYPE = "DATE";
 * Minimum date allowed by MySQL. NOTE: This is a MySQL
 * limitation. Java allows dates from '0000-01-01' while MySQL only supports
 * dates from '1000-01-01'.
public static final Date MIN_DATE = new Date(1000 + 1900,1,1);
 * Maximum date allowed by Java. NOTE: This is a Java limitation, not a MySQL
 * limitation. MySQL allows dates up to '9999-12-31' while Java only supports
 * dates to '8099-12-31'.
public static final Date MAX_DATE = new Date(8099 + 1900,12,31);
protected int _precision = 0;
private java.sql.Date _date = null;
public Date(int year, int month, int date) {
 // Deprecated, so I get deprecation warnings from the next line:
 super(year,month,date);
 if(! isWithinRange(this))
 throw new ValueOutOfRangeException((RangedColumn)this, "" + this);
public Date(String s) {
 super(0l);
 // Start Cut-and-paste from java.sql.Date.valueOf(String s)
 int year;
 int month;
 int day;
 int firstDash;
 int secondDash;
 if (s == null) throw new java.lang.IllegalArgumentException();
 firstDash = s.indexOf('-');
 secondDash = s.indexOf('-', firstDash+1);
 if ((firstDash > 0) & (secondDash > 0) & (secondDash < s.length()-1)) {
 year = Integer.parseInt(s.substring(0, firstDash)) - 1900;
 month = Integer.parseInt(s.substring(firstDash+1, secondDash)) - 1;
 day = Integer.parseInt(s.substring(secondDash+1));
 } else {
 throw new java.lang.IllegalArgumentException();
 // End Cut-and-paste from java.sql.Date.valueOf(String s)
 // Next three lines are deprecated, causing warnings.
 this.setYear(year);
 this.setMonth(month);
 this.setDate(day);
 if(! isWithinRange(this))
 throw new ValueOutOfRangeException((RangedColumn)this, "" + this);
public static boolean isWithinRange(Date date) {
 if(date.before(MIN_DATE))
 return false;
 if(date.after(MAX_DATE))
 return false;
 return true;
public String getRange() { return RANGE; }
public int getPrecision() { return _precision; }
public String getType() { return TYPE; }
}This works well, but it's deprecated. I don't see how I can use a java.util.Calendar object in stead without either essentially re-writing java.sql.Date almost entirely or losing the ability to be able to use java.sql.PreparedStatement.get[set]Date(int pos, java.sql.Date date);
So at this point, I am at a loss.
The deprecation documentation for constructor new Date(int,int,int)says "instead use the constructor Date(long date)", which I can't do unless I do a bunch of expensive String -> [Calendar/Date] -> Milliseconds conversions, and then I can't use "super()", so I'm back to re-writing the class again.
I can't use setters like java.sql.Date.setYear(int) or java.util.setMonth(int) because they are deprecated too: "replaced by Calendar.set(Calendar.DAY_OF_MONTH, int date)". Well GREAT, I can't go from a Date object to a Calendar object, so how am I supposed to use the "Calendar.set(...)" method!?!? From where I'm sitting, this whole Date deprecation thing seems like a step backward not forward, especially in the java.sql.* realm.
To prove my point, the non-deprecated method java.sql.Date.valueOf(String) USES the DEPRECATED constructor java.util.Date(int,int,int).
So, how do I create a java.sql.Date subclass which has the Date(String) constructor that avoids deprecation warnings/errors?
That's all I really want.
HELP!

I appreciate your help, but what I was hoping to accomplish was to have two constructors for my java.sql.Date subclass, one that took (int,int,int) and one that took ("yyyy-MM-dd"). From what I gather from your answers, you don't think it's possible. I would have to have a static instantiator method like:public static java.sql.Date createDate (int year, int month, int date) { ... } OR public static java.sql.Date createDate (String dateString) { ... }Is that correct?
If it is, I have to go back to the drawing board since it breaks my constructor paradigm for all of my 20 or so other MySQL column objects and, well, that's not acceptable, so I might just keep my deprecations for now.
-G

How to map javax.xml.datatype.XMLGregorianCalendar to java.util.Calendar

Hi ,
How to map javax.xml.datatype.XMLGregorianCalendar to java.util.Calendar so that i can use pass String parameter in YYYY-MM-DD format to my Web service.
I generated the schema classes using Jaxb 2.1.5.
Please give suggestion
Thanks in Advance.

toGregorianCalendar().getTime()

Web Service Model transforms dateTime elements to java.util.Calendar

The issue is that my EJB returns a java.util.Date object, the WS that exposes this EJB states in the wsdl that it returns a dateTime element (see attachment). Web Dynpro web-service model, when given the wsdl generates proxies that receive a java.util.Calendar. Later this Calendar object cant be bound to UI elements (e.g. tables) see error below.
Has anybody encountered this problem in the past? Do you have a solution, besides manually transferring the java.util.Calendar objects to java.util.Date object?

Hi Valery,
I tried changing my return type in a method in the EJB from java.util.Date to java.sql.Date, the problem that I ran into is that I was not able to expose that method in the web service afterwards. This is a bit strange since java.sql.Date is suppose to be supported as a web service Endpoint. I checked this twice just to make sure.

Convert java.sql.Timestamp to java.util.Calendar?

What's the best way to convert java.sql.Timestamp to java.util.Calendar?

Use Calendar's setTime(Date date) method.
java.sql.Timestamp extends java.util.Date.
-Roy

Ktoolbar does not recognize "java.util.Calendar"

Hi!
Although http://java.sun.com/j2ee/1.4/docs/tutorial/doc/JAXRPC4.html says that java.util.Calendar is supported, ktoolbar errors out with
error: Found unknown simple type: java.util.Calendar
What's wrong? WSDL not compatible with Java ME?
any help/hint is very much appreciated,
regards Florian

To be honest, I am a bit lost.
I am beginning / trying to develop a mobile app using WTK / Java ME which uses a web service; the WSDL is here: http://www.pegel-mainz.de/WSDL/v3.0/iLON100.WSDL
Running ktoolbar's stub generator with a local copy of this file, I get the error above, but with a simple MIDlet which just says "Hi", everything builds and runs fine.
Funny thing, at least for me - or make that "irritating":
There is no "Stub" in the generated files. The one class which at least extends "java.rmi.Remote" is "MainSoapPort", but that is only an interface.
But in all tutorials/docs so far I find these Stub-classes to instantiate the service!
I guess I am doing something fundamentally wrong.
Any advice/hint/help/link?
It's very much appreciated (as I'm lost atm)
regards,
Florian

Java.util.Calendar calculates wrong date when any duration is added

Hi friends,
I am trying to calculate the date through java.util.Calendar object and getting wrong value. Let me explain the scenario -
Scenario1:
I have taken start date and added some duration to that and expecting a new date which should be calculated as (start date+ duration). The value is as below -
start date = 2012-01-09 (9 January 2012 )
duration = 1year, 1month, 20 days
new date = 2013-02-28 ( 28 February 2013)
*Here new date I am expecting is 2013-03-01 (1 March 2013).
Scenario2:
I have taken another set of values as below -
start date = 2011-02-15 (15 February 2011)
duration = 1year, 1month, 15days
new date = 2012-03-30 (30 March 2012)
*Here new date is as expected.
Scenario1 data is giving me wrong result. Please let me know if any more information is required. Any help will be appriciated. Thanks in advance.
Edited by: user560316 on ९ जनवरी, २०१२ ६:२३ अपराह्न
Edited by: user560316 on ९ जनवरी, २०१२ ६:२४ अपराह्न

It all looks pretty straightforward to me. Try running the following code:
public class TestCalendar {
    public static void main(String[] args) {
        java.util.Calendar myDate = java.util.Calendar.getInstance();
        java.text.DateFormat df = new java.text.SimpleDateFormat("dd MMMM yyyy");
        myDate.set(2012, java.util.Calendar.JANUARY, 9);
        System.out.println("Start date = " + df.format(myDate.getTime()));
        myDate.add(java.util.Calendar.YEAR, 1);
        myDate.add(java.util.Calendar.MONTH, 1);
        myDate.add(java.util.Calendar.DAY_OF_MONTH, 20);
        System.out.println("End date = " + df.format(myDate.getTime()));
}This gives the following result:
Start date = 09 January 2012
End date = 01 March 2013

Java.util.Calendar returning wrong Date object

Example: This was my scenario last night. A server in California has date/time of 'Mon Aug 18'. Current time in Indiana is 'Sun Aug 17'. I use Calendar.getInstance(TimeZone.getTimeZone("America/Indiana/Indianapolis")) to return a Calendar instance. I then call the getTime() method on that instance. It should return a Date object relating to that particular time zone. It will not. It defaults back to the server time. When I print out the Calendar instance everything is good, correct date, correct time,etc. WHY WON'T THE getTime() return the correct java.util.Date???
Following is the output was run today so the dates happened to be the same so focus on the Time. Output includes Server time, new Calendar values, and the Date returned by calendar instance getTime(). See that the Calendar is getting the correct Time.
SERVER DATE=Mon Aug 18 15:52:13 CEST 2003
CALENDAR INSTANCE=java.util.GregorianCalendar[time=1061214732975,areFieldsSet=true,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="America/Indiana/Indianapolis",offset=-18000000,dstSavings=0,useDaylight=false,transitions=35,lastRule=null],firstDayOfWeek=2,minimalDaysInFirstWeek=1,ERA=1,YEAR=2003,MONTH=7,WEEK_OF_YEAR=34,WEEK_OF_MONTH=4,DAY_OF_MONTH=18,DAY_OF_YEAR=230,DAY_OF_WEEK=2,DAY_OF_WEEK_IN_MONTH=3,AM_PM=0,HOUR=8,HOUR_OF_DAY=8,MINUTE=52,SECOND=12,MILLISECOND=975,ZONE_OFFSET=-18000000,DST_OFFSET=0]
Date from getTime()=Mon Aug 18 15:52:12 CEST 2003

I got it worked with using DateFormat.parse !
The trick is to instantiate a new Date object as a result
of parsing out of 'localized' date string.
with below code :
Calendar localCal = new GregorianCalendar(TimeZone.getTimeZone("America/Los_Angeles"));
localCal.set(Calendar.DATE, 25);
localCal.set(Calendar.MONTH, 7);
localCal.set(Calendar.YEAR, 2003);
localCal.set(Calendar.HOUR_OF_DAY,6);
localCal.set(Calendar.MINUTE, 38);
localCal.set(Calendar.SECOND, 11);
Calendar sinCal = new GregorianCalendar(TimeZone.getTimeZone("Asia/Singapore"));
sinCal.setTimeInMillis(localCal.getTimeInMillis());
int date = sinCal.get(Calendar.DATE);
int month = sinCal.get(Calendar.MONTH);
int year = sinCal.get(Calendar.YEAR);
int hour = sinCal.get(Calendar.HOUR_OF_DAY);
int min = sinCal.get(Calendar.MINUTE);
int sec = sinCal.get(Calendar.SECOND);
String sinTimeString = date + "/" + month + "/" + year + " " + hour + ":" + min + ":" + sec;
System.out.println("VIDSUtil.hostToLocalTime : time string now in SIN time : " + sinTimeString);
java.util.Date sinTime = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss").parse(sinTimeString);
System.out.println("time in SIN using Date.toString(): " + sinTime.toString());
It prints out :
VIDSUtil.hostToLocalTime : time string now in SIN time : 25/7/2003 21:38:11
time in SIN using Date.toString(): Fri Jul 25 21:38:11 PDT 2003
(Ignore the PDT, because Date.toString() defaults where the JVM is running)

Is it a Bug on java.util.Calendar or is expected?

When I try to set the DAY OF MONTH to another value then the actual and then set the DAY OF WEEK, if I do not call a 'get(anything)' or 'c.setTime(c.getTime())' beetwin the call to set the DAY OF MONTH and the DAY OF WEEK, when I call 'getTime()', it brings the closest day of week I've set to the actual day of month, and not the closest to the day of month I've setted.
Example:
Obs.: today is 05/14/2002
Scenario 1.:
Calendar c = Calendar.getInstance();
c.set(Calendar.DAY_OF_MONTH, 29);
c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
System.out.println(c.getTime());
--> PRINTS OUT: Mon May 13 17:36:23 BRT 2002
Scenario 2.:
Calendar c = Calendar.getInstance();
c.set(Calendar.DAY_OF_MONTH, 29);
c.setTime(c.getTime()); // or c.get(Calendar.HOUR);
c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
System.out.println(c.getTime());
--> PRINTS OUT: Mon May 27 17:31:25 BRT 2002
is it a bug or not?

The API documentation for the Calendar class says this:
"set(f, value) changes field f to value. In addition, it sets an internal member variable to indicate that field f has been changed. Although field f is changed immediately, the calendar's milliseconds is not recomputed until the next call to get(), getTime(), or getTimeInMillis() is made."
And:
"If fields conflict, the calendar will give preference to fields set more recently."
Which is what your tests show to be the case. So it is expected. Not a bug.

Error in the Dates in java.util.Calendar/java.util.SimpleDateFormat

I specifies the year(1999) and the week of that year(1).
Then I want an existing date like 1999-01-01.
But I get 1998-12-31. This date is WEEK 53 of year 1998.
So what I found was that every week in a year (Ex. 1999),
that have a previous year with 53 weeks (Ex. 1998), have
their dates dislocated one week. This means that
all dates I receive is from the previous week instead for
the correct one.
Code ex.
Calendar aCalendar=Calendar.getInstance();
aCalendar.set(Calendar.YEAR, aIntYear);
aCalendar.set(Calendar.WEEK_OF_YEAR, aIntWeek);
SimpleDateFormat aDateFormatter=new SimpleDateFormat ("yyyy-MM-dd");
aDateFormatter.setCalendar(aCalendar);
String aParsedDate=aDateFormatter.format(aCalendar.getTime());
Have anyone a good solution for this, (without a check if the previous year
has 53 weeks and then adding 1 to all weeks in the next year)?

After reading the API I see that their implementation is correct. If the first day of the year doesn't begin on the first day of the week, then the first day of that week is in the previous year.
For example if New Year's day is on Wednesday and the first day of that week is Sunday then the date of the first day of the week (Sunday) is in the previous year.
I'm not sure how you would like to alter this, if you change it so that it ignores that the first week was not 7 days long then your program will return incorrect values. In the previous example, your proposed alteration would return January 5 as the first day of the first week of the year, which doesn't make any sense.
One thing you could do is check to see that after you set the week, check to see whether the date returned is less than the first day of the year you set. If so return the first day of the year.

Error while deploying a web service whose return type is java.util.Date

Hi
I have written a simple web service which takes in a date input (java.util.Date) and returns the same date back to the client.
public interface Ping extends Remote
* A simple method that pings the server to test the webservice.
* It sends a datetime to the server which returns the datetime.
* @param pingDateRequest A datetime sent to the server
* @returns The original datetime
public Date ping(Date pingDateRequest) throws RemoteException;
The generation of the Web service related files goes smoothly in JDeveloper 10g. The problem arises when I try to deploy this web service on the Oracle 10g (10.0.3) OC4J standalone. it gives me the following error on the OC4J console :
E:\Oracle\oc4j1003\j2ee\home\application-deployments\Sachin-TradingEngineWS-WS\
WebServices\com\sachin\tradeengine\ws\Ping_Tie.java:57: ping(java.util.Date) in com.sachin.tradeengine.ws.Ping cannot be applied to (java.util.Calendar) _result = ((com.sachin.tradeengine.ws.Ping) getTarget()).ping
(myPing_Type.getDate_1());
^
1 error
04/03/23 17:17:35 Notification ==> Application Deployer for Sachin-TradingEngineWS-WS FAILED: java.lang.InstantiationException: Error compiling :E:\Oracle\oc4j1003\j2ee\home\applications\Sachin-TradingEngineWS-WS\WebServices: Syntax error in source [ 2004-03-23T17:17:35.937GMT+05:30 ]
I read somewhere that the conversion between java to xml datatype and vice versa fails for java.util.Date, so it is better to use java.util.Calendar. When I change the code to return a java.util.Calendar then the JDeveloper prompts me the following failure:
Method Ping: the following parameter types do not have an XML Schema mapping and/or serializer specified : java.util.Calendar.
This forces me to return a String data.
I would appreciate if someone can help me out.
Thanks
Sachin Mathias
Datamatics Ltd.

Hi
I got the web service working with some work around. But I am not sure it this approach would be right and good.
I started altogether afresh. I did the following step :
1. Created an Interface (Ping.java) for use in web Service as follows :
public interface Ping extends Remote{
public java.util.Date ping(java.util.Date pingDateRequest)
throws RemoteException;
2. Implemented the above interface in PingImpl.java as follows :
public class PingImpl implements Ping
public java.util.Date ping(java.util.Date pingDateRequest) throws RemoteException {
System.out.println("PingImpl: ping() return datetime = " + pingDateRequest.toString());
return pingDateRequest;
3. Compiled the above 2 java files.
4. Generated a Stateless Java Web Service with the help of JDeveloper. This time the generation was sucessful.(If I had "java.util.Calendar" in place of "java.util.Date" in the java code of the above mentioned files the web service generation would prompt me for error)
5. After the generation of Web Service, I made modification to the Ping interface and its implementing class. In both the files I replaced "java.util.Date" with "java.util.Calendar". The modified java will look as follows :
Ping.Java
=========
public interface Ping extends Remote{
public java.util.Calendar ping(java.util.Calendar pingDateRequest)
throws RemoteException;
PingImpl.Java
================
public class PingImpl implements Ping
public java.util.Calendar ping(java.util.Calendar pingDateRequest) throws RemoteException {
System.out.println("PingImpl: ping() return datetime = " + pingDateRequest.toString());
return pingDateRequest;
6. Now I recompile both the java files.
7. Withour regenerating the Web Service I deploy the Web Service on OC4j 10.0.3 from JDeveloper. This time the deployment was sucessful.(The Deployment fails if I don't follow the step 5.)
8. Now I generated a Stub from JDeveloper and accessed the stub from a client. It works fine. Here if you see the Stub code it takes java.util.Date as a parameter and returns a java.util.Date. (Mind you I am accepting a java.util.Calendar and returning the same in my Web Service interface. Step 5)
The confusing thing is the Serialization and Deserialization of Data from Client java data to Soap message and Soap message to Server java data.
From Client to SOAP :
java.util.Date to datetime
From SOAP to Server :
datetime to java.util.Calendar
From Server to SOAP :
java.util.Calendar to datetime
From SOAP to Client :
datetime to java.util.Date (I am not able to understand this part of the conversion)
Any help or inputs would be appreciated.
Thanks
Sachin Mathias

Wsimport, mapping of xs:date to java.util.Date via ext file, and -B option

Summary:
JDK 1.7.0_09 and wsimport and xjc that comes with it.
Global JAXB binding to map xs:date to java.util.Date
I have the following external bindings file:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
 xmlns:jaxb="http://java.sun.com/xml/ns/jaxb" xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
 elementFormDefault="qualified" attributeFormDefault="unqualified"
 jaxb:extensionBindingPrefixes="xjc" jaxb:version="2.1">
 <xs:annotation>
 <xs:appinfo>
 <jaxb:globalBindings>
 <xjc:serializable />
 <jaxb:javaType name="java.util.Date" xmlType="xs:date" parseMethod="au.com.xxx.jaxb.DateAdapter.parseDate" printMethod="au.com.xxx.jaxb.DateAdapter.printDate" />
 </jaxb:globalBindings>
 </xs:appinfo>
 </xs:annotation>
</xs:schema>The au.com.xxx.jaxb.DateAdapter code is as follows:
package au.com.xxx.jaxb;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import javax.xml.bind.DatatypeConverter;
public class DateAdapter {
 public static Date parseDate(String s) {
 return DatatypeConverter.parseDate(s).getTime();
 public static String printDate(Date dt) {
 Calendar cal = new GregorianCalendar();
 cal.setTime(dt);
 return DatatypeConverter.printDate(cal);
}When I run the following wsimport from the command line, I get:
salvojo@AUD20901BL /cygdrive/c/workspace/JSF/insurance
$ /cygdrive/c/java/jdk1.7.0_09/x64/bin/wsimport -keep -s gen-src -b external/wsdl/jaxb-bindings.xml -wsdllocation /wsdl/Member.wsdl -d WebContent/WEB-INF/classes external/wsdl/Member.wsdl
parsing WSDL...
Generating code...
Compiling code...
C:\workspace\JSF\insurance\gen-src\org\w3\_2001\xmlschema\Adapter1.java:13: error: package au.com.xxx.jaxb does not exist
 return (au.com.xxx.jaxb.DateAdapter.parseDate(value));
 ^
C:\workspace\JSF\insurance\gen-src\org\w3\_2001\xmlschema\Adapter1.java:17: error: package au.com.xxx.jaxb does not exist
 return (au.com.xxx.jaxb.DateAdapter.printDate(value));
 ^
2 errors
compilation failed, errors should have been reportedWhich means that wsimport or xjc needs to know the classpath to find au.com.xxx.jaxb.DateAdapter.
But how do I pass the classpath from wsimport to the JAXB compiler ?
There is the -B option in wsimport, but I could not get it to work.
If I read it correctly, I should be able to pass the -classpath option to the JAXB compiler from wsimport via -B.
I tried:
salvojo@AUD20901BL /cygdrive/c/workspace/JSF/insurance
$ /cygdrive/c/java/jdk1.7.0_09/x64/bin/wsimport -keep -s gen-src -B"-classpath WebContent/WEB-INF/classes" -b external/wsdl/jaxb-bindings.xml -wsdllocation /wsdl/Member.wsdl -d WebContent/WEB-INF/classes external/wsdl/Member.wsdl
no such JAXB option: -classpath WebContent/WEB-INF/classes
Usage: wsimport [options] <WSDL_URI>
where [options] include:
-b <path> specify jaxws/jaxb binding files or additional schemas
 (Each <path> must have its own -b)
-B<jaxbOption> Pass this option to JAXB schema compiler
-catalog <file> specify catalog file to resolve external entity references
 supports TR9401, XCatalog, and OASIS XML Catalog format.
-d <directory> specify where to place generated output files
<...snipped...>... where WebContent/WEB-INF/classes is the classpath where au.com.xxx.jaxb.DateAdapter.class could be found. Obviously it did not like it.
Also, why is wsimport generate org.w3._2001.xmlschema.Adapter1.java ? All it is doing is wrapping up the exact same call that I have specified in my DateAdapter. How can I tell wsimport or xjc to NOT create that extra Adapter1.java and simply directly use my DateAdapter ??

create additional column of type LONG to represent date.
dateFormat is of type java.util.Date:
long newLongDate = dateFormat.getTime();
select object(b) from MyEntity b where b.MYLONGDATE > ?1 and b.MYLOGDATE <= ?2

Cannot use winzip to unzip the zip file zipped by java.util.zip

Hi all,
I use the followcode to create a zip file, and i downlaod it and try to use winzip to unzip this file but fail. The path is correct and i got the zip file. but it just cannot unzip.
pls help
thanks alot.
Kin
 int count = 0;
 count = ContentDocuments.size();
 for (int i = 0; i < bb; i++) {
 System.out.println(filenames[i] + "");
 // Create a buffer for reading the files
 byte[] buf = new byte[10*1024*1024];
 try {
 String outFilename = MyDir + "zipfile/" + getContentID2()+".zip";
 System.out.println("outFilename = " + outFilename);
 ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outFilename));
 for (int i=0; i<filenames.length; i++) {
 FileInputStream in = new FileInputStream(filenames);
 out.putNextEntry(new ZipEntry(filenames[i]));
 int len;
 while ((len = in.read(buf)) != -1) {
 out.write(buf, 0, len);
 out.closeEntry();
 in.close();
 out.close();
 } catch (IOException e) {
 System.err.println("zipprocess " + e.getMessage());

I've written a replacement zip file creator class. Not much tested but it seems to work, however I've yet to try it with the version of WINZIP that rejected my previous attempts. Oh, and the stored dates are garbage.
* ZipOutputFile.java
* Created on 25 March 2004, 13:08
package zip;
import java.io.IOException;
import java.nio.ByteBuffer;
* Creates a ZIP archive in a file which WINZIP should be able to read.
* Unfortunately zip archives generated by the standard Java class
* {@link java.util.zip.ZipOutputStream}, while adhering to PKZIPs format specification,
* don't appear to be readable by some versions of WinZip and similar utilities. This is
* probably because they use
* a format specified for writing to a non-seakable stream, where the length and CRC of
* a file is writen to a special block following the data. Since the length of the binary
* date is unknown this makes an archive quite complicated to read, and it looks like
* WinZip hasn't bothered.
* All data is Deflated. Close completes the archive, flush terminates the current entry.
* @see java.util.zip.ZipOutputStream
* @author Malcolm McMahon
public class ZipOutputFile extends java.io.OutputStream {
 byte[] oneByte = new byte[1];
 java.io.RandomAccessFile archive;
 public final static short DEFLATE_METHOD = 8;
 public final static short VERSION_CODE = 20;
 public final static short MIN_VERSION = 10;
 public final static int ENTRY_HEADER_MAGIC = 0x04034b50;
 public final static int CATALOG_HEADER_MAGIC = 0x02014b50;
 public final static int CATALOG_END_MAGIC = 0x06054b50;
 private final static short DISC_NUMBER = 0;
 ByteBuffer entryHeader = ByteBuffer.wrap(new byte[30]);
 ByteBuffer entryLater = ByteBuffer.wrap(new byte[12]);
 java.util.zip.CRC32 crcAcc = new java.util.zip.CRC32();
 java.util.zip.Deflater def = new java.util.zip.Deflater(java.util.zip.Deflater.DEFLATED, true);
 int totalCompressed;
 long MSEPOCH;
 byte [] deflateBuf = new byte[2048];
 public static final long SECONDS_TO_DAYS = 60 * 60 * 24;
 * Entry stores info about each file stored
 private class Entry {
 long offset; // position of header in file
 byte[] name;
 long crc;
 int compressedSize;
 int uncompressedSize;
 java.util.Date date;
 * Contructor also writes initial header.
 * @param fileName Name under which data is stored.
 * @param date Date to label the file with
 * @TODO get the date stored properly
 public Entry(String fileName, java.util.Date date) throws IOException {
 name = fileName.getBytes();
 this.date = date == null ? new java.util.Date() : date;
 entryHeader.position(10);
 putDate(entryHeader);
 entryHeader.putShort(26, (short)name.length);
 offset = archive.getFilePointer();
 archive.write(entryHeader.array());
 archive.write(name);
 catalog.add(this);
 crcAcc.reset();
 totalCompressed = 0;
 def.reset();
 * Finish writing entry data. Save the lenghts & crc for catalog
 * and go back and fill them in in the entry header.
 public void close() throws IOException {
 def.finish();
 while(!def.finished())
 deflate();
 entryLater.position(0);
 crc = crcAcc.getValue();
 compressedSize = totalCompressed;
 uncompressedSize = def.getTotalIn();
 entryLater.putInt((int)crc);
 entryLater.putInt(compressedSize);
 entryLater.putInt(uncompressedSize);
 long eof = archive.getFilePointer();
 archive.seek(offset + 14);
 archive.write(entryLater.array());
 archive.seek(eof);
 * Write the catalog data relevant to this entry. Buffer is
 * preloaded with fixed data.
 * @param buf Buffer to organise fixed lenght part of header
 public void writeCatalog(ByteBuffer buf) throws IOException {
 buf.position(12);
 putDate(buf);
 buf.putInt((int)crc);
 buf.putInt(compressedSize);
 buf.putInt(uncompressedSize);
 buf.putShort((short)name.length);
 buf.putShort((short)0); // extra field length
 buf.putShort((short)0); // file comment length
 buf.putShort(DISC_NUMBER); // disk number
 buf.putShort((short)0); // internal attributes
 buf.putInt(0); // external file attributes
 buf.putInt((int)offset); // file position
 archive.write(buf.array());
 archive.write(name);
 * This writes the entries date in MSDOS format.
 * @param buf Where to write it
 * @TODO Get this generating sane dates
 public void putDate(ByteBuffer buf) {
 long msTime = (date.getTime() - MSEPOCH) / 1000;
 buf.putShort((short)(msTime % SECONDS_TO_DAYS));
 buf.putShort((short)(msTime / SECONDS_TO_DAYS));
 private Entry entryInProgress = null; // entry currently being written
 private java.util.ArrayList catalog = new java.util.ArrayList(12); // all entries
 * Start a new output file.
 * @param name The name to store as
 * @param date Date - null indicates current time
 public java.io.OutputStream openEntry(String name, java.util.Date date) throws IOException{
 if(entryInProgress != null)
 entryInProgress.close();
 entryInProgress = new Entry(name, date);
 return this;
 * Creates a new instance of ZipOutputFile
 * @param fd The file to write to
 public ZipOutputFile(java.io.File fd) throws IOException {
 this(new java.io.RandomAccessFile(fd, "rw"));
 * Create new instance of ZipOutputFile from RandomAccessFile
 * @param archive RandomAccessFile
 public ZipOutputFile(java.io.RandomAccessFile archive) {
 this.archive = archive;
 entryHeader.order(java.nio.ByteOrder.LITTLE_ENDIAN); // create fixed fields of header
 entryLater.order(java.nio.ByteOrder.LITTLE_ENDIAN);
 entryHeader.putInt(ENTRY_HEADER_MAGIC);
 entryHeader.putShort(MIN_VERSION);
 entryHeader.putShort((short)0); // general purpose flag
 entryHeader.putShort(DEFLATE_METHOD);
 java.util.Calendar cal = java.util.Calendar.getInstance();
 cal.clear();
 cal.set(java.util.Calendar.YEAR, 1950);
 cal.set(java.util.Calendar.DAY_OF_MONTH, 1);
// def.setStrategy(Deflater.HUFFMAN_ONLY);
 MSEPOCH = cal.getTimeInMillis();
 * Writes the master catalogue and postamble and closes the archive file.
 public void close() throws IOException{
 if(entryInProgress != null)
 entryInProgress.close();
 ByteBuffer catEntry = ByteBuffer.wrap(new byte[46]);
 catEntry.order(java.nio.ByteOrder.LITTLE_ENDIAN);
 catEntry.putInt(CATALOG_HEADER_MAGIC);
 catEntry.putShort(VERSION_CODE);
 catEntry.putShort(MIN_VERSION);
 catEntry.putShort((short)0);
 catEntry.putShort(DEFLATE_METHOD);
 long catStart = archive.getFilePointer();
 for(java.util.Iterator it = catalog.iterator(); it.hasNext();) {
 ((Entry)it.next()).writeCatalog(catEntry);
 catEntry.position(0);
 catEntry.putInt(CATALOG_END_MAGIC);
 catEntry.putShort(DISC_NUMBER);
 catEntry.putShort(DISC_NUMBER);
 catEntry.putShort((short)catalog.size());
 catEntry.putShort((short)catalog.size());
 catEntry.putInt((int)(archive.getFilePointer() - catStart));
 catEntry.putInt((int)catStart);
 catEntry.putShort((short)0);
 archive.write(catEntry.array(), 0, catEntry.position());
 archive.setLength(archive.getFilePointer()); // truncate if old file
 archive.close();
 def.end();
 * Closes entry in progress.
 public void flush() throws IOException{
 if(entryInProgress == null)
 throw new IllegalStateException("Must call openEntry before writing");
 entryInProgress.close();
 entryInProgress = null;
 * Standard write routine. Defined by {@link java.io.OutputStream}.
 * Can only be used once openEntry has defined the file.
 * @param b Bytes to write
 public void write(byte[] b) throws IOException{
 if(entryInProgress == null)
 throw new IllegalStateException("Must call openEntry before writing");
 crcAcc.update(b);
 def.setInput(b);
 while(!def.needsInput())
 deflate();
 * Standard write routine. Defined by {@link java.io.OutputStream}.
 * Can only be used once openEntry has defined the file.
 * @param b Bytes to write
 public void write(int b) throws IOException{
 oneByte[0] = (byte)b;
 crcAcc.update(b);
 write(oneByte, 0, 1);
 * Standard write routine. Defined by {@link java.io.OutputStream}.
 * Can only be used once openEntry has defined the file.
 * @param b Bytes to write
 * @param off Start offset
 * @param len Byte count
 public void write(byte[] b, int off, int len) throws IOException{
 if(entryInProgress == null)
 throw new IllegalStateException("Must call openEntry before writing");
 crcAcc.update(b, off, len);
 def.setInput(b, off, len);
 while(!def.needsInput())
 deflate();
 * Gets a buffer full of coded data from the deflater and writes it to archive.
 private void deflate() throws IOException {
 int len = def.deflate(deflateBuf);
 totalCompressed += len;
 if(len > 0)
 archive.write(deflateBuf, 0, len);

Cannot convert from java.util.Date to java.sql.Date

In the below code am trying to get the current date and 60 days prior date:
Date todayDate;
 Date Sixtydaysprior;
 String DATE_FORMAT = "MM/dd/yy";
 DateFormat sdf = new SimpleDateFormat(DATE_FORMAT);
 Calendar cal = Calendar.getInstance();
 todayDate = sdf.parse(sdf.format(cal.getTime()));
 cal.add(Calendar.DATE, -60);
 Sixtydaysprior = sdf.parse(sdf.format(cal.getTime()));I have imported following files:
<%@page
 import="java.util.Calendar,
 java.text.SimpleDateFormat,
 java.text.ParseException,
 java.util.*"
%>Shows up following error msg:
Type mismatch: cannot convert from java.util.Date to java.sql.Date
Thanks.
Edited by: MiltonDetroja on May 22, 2009 11:03 AM

Shows up following error msg:
Type mismatch: cannot convert from java.util.Date to java.sql.Date
I don't think this exception is thrown from the portion of code you have shown. As clearly specified in exception message, you cannot cast an instance of java.util.Date to java.sql.Date. you will need to do something like this
java.util.Date today = new java.util.Date();
long t = today.getTime();
java.sql.Date dt = new java.sql.Date(t);

Java.util.Calendar

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