String FILENAME = "file.txt.gz";
// Since there are 4 constructor calls here, I wrote them out in full.
// In real life you would probably nest these constructor calls.
FileInputStream fin = new FileInputStream(FILENAME);
GZIPInputStream gzis = new GZIPInputStream(fin);
InputStreamReader xover = new InputStreamReader(gzis);
BufferedReader is = new BufferedReader(xover);
// Now read lines of text: the BufferedReader puts them in lines,
// the InputStreamReader does Unicode conversion, and the
// GZipInputStream "gunzip"s the data from the FileInputStream.
while ((line = is.readLine()) != null)
System.out.println("Read: " + line);