I'm trying to properly handle the IOException that can be thrown when
the receive() method is called on a socket.  I've tried to find a
detailed explanation/example of when such an exception might occur, but
I've come up empty-handed.

try {
      Runtime rt = Runtime.getRuntime();
      process proc = suzrt.exec("cmd /C start suzana.exe test");
      }

I have this specific scenario in our Bc4J application layer. But i
thought this can be mapped onto a simple Java Problem. Suppose there are
two standard classes X and FactoryX
Class X is part of library which cant be modified.

If I have two servlets that both instantiate an instance of the same
class and in this class is a static member variable, is this the same
variable in both instances?  I.e. if I set the int (say) to 100 in one
servlet does the other servlet now see the value as 100?

I run a code that contains
System.out.println(System.in.read());
I input an Integer say 45 and for output i am expecting same 45 but i get 52
Why???

Upon  reading a string from a user input or a text file,
and before I can hope to do some arithmetic on it,
I will need to convert it to a number (either int, double, float) .
I have searched all the books that I have and most of the java tutorial

I'm just about done with the program and ready to turn it in, but am
having one difficulty with one aspect of the program.
When  I run the program it gives me a dollar sign for the percentage. I
don't want the percentage to show the dollar sign. Can someone take a

I need to get a C program to talk to Java and I am using JNI. I have created
a dll that the Java code loads. The C code reads from a file and stores some
data in the heap. I can get the dll to send data back and forth to the Java
code, but its not possible to free the variables ...

Code written and compiled with j2sdk v1.5 will not run on old JVM's
supporting j2sdk <= v1.4? Or?
regards,
Andersen

    This might not be the right ng but ...
I have a RHES3 system that I have installed java and ant on.
When ever I try to build anythign with ant I get the error message I
copied to the subject of this posting.

i need to create an applet a GUI IfBut.java which contains three
buttons, Red, Green and Blue
which when clicked will fill the circle with the respective color.
im stuck at the actionPerformed(ActionEvent e) & paint(Graphics g) {

Hi.  Should I jump right into Java, or is it better to learn C first?
I'm not a total beginner; I know Javascript, but I obviously would like
to learn a more powerful language.
Thanks,

We are in the step of selecting a new vm (embedded). The question is
which version of jdk it shall support. The battle stands between 1.5 and
1.4. I have not managed to find any benchmark statistics. Have anyone
else managed to find that information.

how to draw a curve in real time in Java without swing ?
Thanks

I am learning Java as a hobby and currently using  j2sdk-1_4_2_05.
I note that Sun has made available a more recent version , namely JDK
1.5.0_01.
Here is my question.