look and feel

[syntax]

hi, i have a question on "look and feel"

i want to know full terms of the follwing::

UImanager.setLookAndFeel

question1 :
-------------

whats the full form of UI ?





for another question here is a code ==>

CODE
----------------
String plaf = "com.sun.java.swing.plaf.motif.MotifLookAndFeel";
try
{
UIManager.setLookAndFeel(plaf);
SwingUtilities.UpdateComponentTreeUI(panel);
}
catch(Exception e)
{e.printStackTrace();}

------------------



question 2:
--------------

well, its not important to know whats the full form of plaf, but i
feel the meaning of laf>> look and feel and can you tell me whats for
"p" ?
i am asking this for readability.probabily it has some meaning.



however, the important question is what is this
printStackTracemethod ?? can anybody tell something about this
method,about its functioning etc.
thanks

 

[Christophe Vanfleteren]

hi, i have a question on "look and feel"

i want to know full terms of the follwing::

UImanager.setLookAndFeel

question1 :

UI = User Interface

http://www.acronymfinder.com/ can come in handy for such cases.

for another question here is a code ==>

CODE
----------------
String plaf = "com.sun.java.swing.plaf.motif.MotifLookAndFeel";
try
{
UIManager.setLookAndFeel(plaf);
SwingUtilities.UpdateComponentTreeUI(panel);
}
catch(Exception e)
{e.printStackTrace();}

------------------



question 2:
--------------

well, its not important to know whats the full form of plaf, but i
feel the meaning of laf>> look and feel and can you tell me whats for
"p" ?
i am asking this for readability.probabily it has some meaning.

Pluggable, as in "can easily be changed / added"

however, the important question is what is this
printStackTracemethod ?? can anybody tell something about this
method,about its functioning etc.
thanks

You might want to learn about these:
http://java.sun.com/j2se/1.4.2/docs/api/

The method you want can be found here:
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Throwable.html#printStackTrace()

 

[syntax]

yes, i know those methods are in the API docs.but it was difficult to
understand.
API >
" public void printStackTrace()Prints this throwable and its
backtrace to the standard error stream. This method prints a stack
trace for this Throwable object on the error output stream that is the
value of the field System.err .."

what does it mean ? can anybody explain in a simple way? i find these
two pharases difficult, backtrace ( is it backtracking i.e in a
reverse way??) AND stack trace ( whats this, is it just a stack?) .



anyway, can anybody tell me what it does overall ?

 

[Jon A. Cruz]

what does it mean ? can anybody explain in a simple way? i find these
two pharases difficult, backtrace ( is it backtracking i.e in a
reverse way??) AND stack trace ( whats this, is it just a stack?) .



anyway, can anybody tell me what it does overall ?

http://www.mindview.net/Books/TIJ/

http://java.sun.com/docs/books/tutorial/essential/exceptions/index.html

 

[Thomas Fritsch]

yes, i know those methods are in the API docs.but it was difficult to
understand.
API >
" public void printStackTrace()Prints this throwable and its
backtrace to the standard error stream. This method prints a stack
trace for this Throwable object on the error output stream that is the
value of the field System.err .."

what does it mean ? can anybody explain in a simple way? i find these
two pharases difficult, backtrace ( is it backtracking i.e in a
reverse way??) AND stack trace ( whats this, is it just a stack?) .

anyway, can anybody tell me what it does overall ?

Hi,

I suggest you compile and start the following program.
Then you will see a real stack trace and understand what it is.


import javax.swing.*;

public class Test {
public static void main(String args[]) {
try {
String plaf =
"com.sun.java.swing.plaf.afhgdhgd.IllegalLookAndFeel";
UIManager.setLookAndFeel(plaf);
}
catch(Exception e) {
e.printStackTrace();
}
}
}

________________________________
Thomas Fritsch