Question

I am trying to read text file whilst running the program from a jar archive.
I come accros that I need to use InputStream to read file. The snippet of code:

buffer = new BufferedInputStream(this.getClass().getResourceAsStream((getClass().getClassLoader().getResource("English_names.txt").getPath())));


System.out.println(buffer.read()+" yeas");

At this line System.out.println(buffer.read()+" yeas"); program stops and nothing happens since then. Once you output the contents of buffer object it is not null.
What might be the problem?

Answer 1

From InputStream#read():

This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

So basically, the stream appears to be waiting on content. I’m guessing it’s how you’ve constructed the stream, you can simplify your construction to:

InputStream resourceStream = getClass().getResourceAsStream("/English_names.txt");
InputStream buffer = new BufferedInputStream(resourceStream);

I’d also check to make sure that resourceStream is not-null.