Where does the exception go?

[aytidaalkuhs]

I was doing some file handling recently and used the read() method of the FileInputStream class. The read() method throws an IOException. I came across code (and used it as well) that looks like the snippet below.

Code:

class fileRead{
public static void main(String []a) throws IOException {
//do file handling here and call read as well
}
}

Now, what i want to know is that who handles the IOException? Is it the JVM? If yes, how does it do it. If no, please help.

waiting...
aytidaalkuhs

[Java Tip]

You are just throwing it. That means nobody handles it.

If you write the code like this. You can handle it yourself:

Code:

class fileRead{
public static void main(String []a) {

  try {
    //do file handling here and call read as well
  } catch(IOException e) {

    // handle your exception here
    e.printStackTrace();

  }
}
}

[DonCash]

Hey.

Read this Sun Java Tutorial on Exceptions. Its very informative:

Lesson: Exceptions (The Java™ Tutorials > Essential Classes)

[Eranga]

Yes, it's. What is the best thing is handling the Exceptions. Normally what I have done is, catch all exceptions and put it into a log. So anytime latter I can check my error.