I'm to write and compile Java in Linux. I am getting an odd compiler error
which I don't see with Windows:
error: Can't find method `showInputDialog(Ljava/lang/String;)' in type
`javax.swing.JOptionPane'.userJackalope = JOptionPane.showInputDialog(

Hello..Friends!!!
Is a first time that I study a Java, but after script with Notepad on a
exact sintax, using a Command javac with MS-DOS prompt, this dont't run to
compile.

can somebody help me with write file ? i am trying to do print '\n'
(enter) into .txt file(i try to open use note pad), but somehow it
doesn't work.
part of code is

Can anyone tell me why  'java -version'  prints to stderr and not to stdout?
Is this a bug or a feature?  (I'm using Java 1.4.2 on Solaris 8).

Using the File class I'm able to recursively traverse my local
filesystem. I'm wondering how do Java programmers store this type of
info, ie is there a Tree collection of some kind? I've seen JTree and it
would make sense for there to be a corresponding data structure you can

Hi, I have a Swing application and want to use a Timer class to refresh the
statistics (using JTextArea) repeatedly at certain interval. I only need 1
timer and the refreshing must be very fast (as fast as 1 milli-second if
possible).

I have uploaded this (first in my life) applet on the Internet, along with
the HTML file for its viewing. On my hard drive I've opened the HTML with
Internet Explorer and Opera, and it works ok. Then I uploaded it on the
internet, and when I opened the Web site I got an "Invalid ...

Hey, I recently decided to learn java and picked up a book on the
subject. Having done almost everything I know about C++ within the
Visual C++ IDE, I feel a lot better working with one than doing the
command line as the book suggests. Is this a bad idea? I went and

While I'm studying for 310-035 exam I encounter below question.
Which of the following statements are true?
1)You cannot be certain at what point Garbage collection will occur
2) Once an object is unreachable it will be garbage collected

Hi, I have made a linked list that is full of objects of type T, and
when I try to get the objects out of the linked list the error is that
the types are incompatable. ie. T is not the same as java.lang.object.
Surely there is a way to convert java.lang.object back to T???

I'm just starting off in the exciting world of Java, and my first book on
the subject is Thinking in Java. The book's sample code use's Bruce Eckel's
library, however, I'm unable to import his libraries. The library is in the
same directory structure has in the import line in the ...

Trying to give user radio buttons to change JFrame look and feel on the
fly via
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName();
etc. in the buttons' action listener. The code executes but the look and

I s there a program that for a given directory sorts the correct order of
compiling, ie if file a.java depends on file b.java then file b.java is
compiled first or added the file list at command line?
thanks in advance

Hey, I recently decided to learn java and picked up tutorials and samples
over the net, but each time i try to compile an applet I have the same
problem ; in the paint method i cannot use the Color variable :
public void paint(Graphics g)