aminur rashid

Run the OC4j server, make a connection to oc4j server and deploy the bean to oc4j server and then u will be fine.

So what is reflection in java and its use??? Still looking for a good answer of it...

class Animal{ public void eat(int amt) { System.out.println("Animal Eating"); } } class Dog extends Animal{ public void eat(int amt) { System.out.println("Dog Eating"); } } public class AnimalTest{ public static void main(String[] args) { Animal myAnimal = new Dog(); myAnimal.eat(); } }
will not compile as no method eat in Animal

any way if we call the correct method it will be the method of Dog is being called as we are creating instance of Dog.
My question...
when we should go for over-ridden method and when we should go for method with different names.
Like we could have had dogEat method in Dog instead of simple eat.
What are the criteria that needs to be considered before we design classes

http://www.javaworld.com/javatips/jw-javatip48_p.html

http://www.javaworld.com/javatips/jw-javatip48_p.html

Shall we start it again???
Diff b/w arraylist and vector...
ArrayList is not synchronized but Vector is. Vector is slow...

Hello
I have a problem in SimpleDateFormatter and it will be nice if any one help me.
As we know a user can set any valid format to a SimpleDateFormatter.e.g "mm d", "MM/dd/yy" etc.
Now I want that if I have set a format to a SimpleDateFormatter (say "MM/dd:yy")and if I pass a string of numbers say "123456" it should format the string in the specified format.(ie. 12 should be taken as month 34 should be taken as day (can convert 34 to 30+4 or can throw error.))Similar to what MS Excel does when we set format of a cell of MS excel to DateFormat.
Well DateaFormatter expects the input to be formatted in the same pattern as that was set (i.e if we have set the pattern as "MM d:yy" it expects value as 11:11:11 to format else it will trhow exception)
Any suggestions, ideas is welcome.

Hello
I have a problem in SimpleDateFormatter and it will be nice if any one help me.
As we know a user can set any valid format to a SimpleDateFormatter.e.g "mm d", "MM/dd/yy" etc.
Now I want that if I have set a format to a SimpleDateFormatter (say "MM/dd:yy")and if I pass a string of numbers say "123456" it should format the string in the specified format.(ie. 12 should be taken as month 34 should be taken as day (can convert 34 to 30+4 or can throw error.))Similar to what MS Excel does when we set format of a cell of MS excel to DateFormat.
Well DateaFormatter expects the input to be formatted in the same pattern as that was set (i.e if we have set the pattern as "MM d:yy" it expects value as 11:11:11 to format else it will trhow exception)
Any suggestions, ideas is welcome.

Hi,
This is what I have in build.xml:
<signjar alias="myalias" jar="${app.name}.jar" keypass="mykeypass" keystore="${build.home}/storepath" signedjar="${build.home}/sgn${app.name}.jar" storepass="mypassword"/>

Now if I dont have javahome set before running this ant application i get the io exception saying that jarsigner not found[Obviuos].
Is their a way that i can set my java_home (or path ) so that make file will find the jarsigner from the required directory.
??

I guess u can use ByteArrayInputStream or ObjectOutputStream
Not sure

yes
bitwise inclusive OR '| '
is higher in precedence.
Check this
http://java.sun.com/docs/books/tutorial/java/nutsandbolts/expressions.html
Spec

Here is the code for JSpinner.
import java.awt.*; import java.text.*; import java.util.*; import javax.swing.*; import javax.swing.text.*; import java.util.Calendar; import java.util.Date; public class SpinnerTest{ public static void main(String[] args) { Frame f = new Frame(); f.setLayout(new BorderLayout()); Calendar calendar = Calendar.getInstance(); Date initDate = calendar.getTime(); calendar.add(Calendar.YEAR, -100); Date earliestDate = calendar.getTime(); calendar.add(Calendar.YEAR, 200); Date latestDate = calendar.getTime(); SpinnerModel dateModel = new SpinnerDateModel(initDate, earliestDate, latestDate, Calendar.YEAR); JSpinner spinner = new JSpinner(dateModel); f.add(spinner, BorderLayout.WEST); f.setVisible(true); f.pack(); } }
Now if i try to increase the value by Up arrow (?) of the spinner, i expect the value to be increased by YEAR as i have set the step value as Calender.Year
But its increased by the Month.
It comes with the default date value 8/20/03 12:31 PM [current date]
Now if i press upper arrow the value 8 is increased instead of 03 [year]

Hi,
I am using a mask formatter for my jformatted text field.
Now the mask string that I am using for this mask formatter is taken from user Input.
Now if user enters nothing in the input i shud allow the jformattext field with the give mask formatter to accept all the character.
But since no mask is set in this case.(user input is either null or "" string)....
i can not set a single character to my jformattextfield allows not a single character
Help needed.

Carl Trusiak End is near.....
.....

Here is the code.
SimpleDateFormat tempF = new SimpleDateFormat("MM/dd/yyyy"); tempF.setLenient(false); JFormattedTextField tempt = new javax.swing.JFormattedTextField(tempF);
Now if i creat SimpleDateFormat with the string MM/dd/yy the behaviour of JtextField is normal.
By normal i mean it accepts date as 11/11/11 only and not 11/11/11111111
But if i create SimpleDateFormate with String MM/dd/yyyy
the formattted textfield can accept year upto 9 digit.
i mean i can enter date as
02/03/12345678
Howver i was expecting that user can only enter
02/03/1234 [after validation]
but he can enter value
02/03/12345678
??
any idea??
the validation for MM/dd/yy is working fine.
here is the test code
import java.text.SimpleDateFormat; import java.text.ParseException; public class SimpleDateFormatterTest { public static void main(String args[]) { SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy"); SimpleDateFormat sdf1 = new SimpleDateFormat("dd/MM/yy"); sdf.setLenient(false); String dateStr = "12/03/123456789"; try { System.out.println("Date after format : dd/MM/yyyy"+sdf.format(sdf.parse(dateStr)));//itdont System.out.println("Date after format dd/MM/yy : "+sdf1.format(sdf1.parse(dateStr)));//it behaves normally } catch (ParseException e) { e.printStackTrace(); } } }
[ July 23, 2003: Message edited by: aminur rashid ]