Java tutorial
import java.io.FileInputStream; import java.io.IOException; import java.nio.ByteBuffer; import java.nio.channels.Channels; import java.nio.channels.ReadableByteChannel; import java.nio.channels.WritableByteChannel; import java.util.zip.GZIPInputStream; public class Main { public static void main(String[] args) throws IOException { FileInputStream fin = new FileInputStream(args[0]); GZIPInputStream gzin = new GZIPInputStream(fin); ReadableByteChannel in = Channels.newChannel(gzin); WritableByteChannel out = Channels.newChannel(System.out); ByteBuffer buffer = ByteBuffer.allocate(65536); while (in.read(buffer) != -1) { buffer.flip(); out.write(buffer); buffer.clear(); } } }