need help in understanding exceptions

[786snow]

I am trying to understand how exception work. I understand the code below.

  try {
        BufferedReader in = new BufferedReader(new FileReader("infilename.txt"));
        String str;
        while ((str = in.readLine()) != null) {
            //process(str);
			 System.out.print("it did not works");

        }
        in.close();
    } 
	
	catch (FileNotFoundException ex) {
       System.out.print("file not found");
    }
}
	
	catch (IOException e) {  System.out.print("file can not be opened");
		e.printStackTrace();
	}

 
}

But I do not understand in the following code they decalaed "throws IOException' in the method declaration with out any catch and try, how does that work?

public void readFile(Sring filename) throws IOException {


while (numBytes <= myBuffer.length){  myInputStream.read(myBuffer);
nymByres;++
}

 

[feherke]

Hi

Your question belongs to forum269. Please repost it there.

Feherke.

http://rootshell.be/~feherke/