How can I check if an InputStream is empty without reading from it?

Question

I want to know if an InputStream is empty, but without using the method read(). Is there a way to know if it\'s empty without reading from it?

Answer 1

How about using inputStreamReader.ready() to find out?

import java.io.InputStreamReader;

/// ...

InputStreamReader reader = new InputStreamReader(inputStream);
if (reader.ready()) {
    // do something
}

// ...