Java tutorial
import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.zip.GZIPOutputStream; public class Main { public static void main(String[] argv) throws Exception { GZIPOutputStream out = new GZIPOutputStream(new FileOutputStream("outfile.gzip")); FileInputStream in = new FileInputStream("infilename"); byte[] buf = new byte[1024]; int len; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); } in.close(); out.finish(); out.close(); } }