How to zip one file i have on disk with java.util.zip

Question

I don't know how to zip a file. I managed to do new html file, but i don't know how to zip it.
This is my code:
PrintWriter pw = new PrintWriter (new FileWriter(export), true);
Thanks!

Answer 1

heres a zipper class i wrote which i have butchered a bit to make more generic (its basic and at present only takes one zipentry etc, but very simple and should be easy to extend etc) Just pass it your file in its constructor and then call its zipme method. PS if it can be made better let me know so i can update my class, cheers.
import java.io.*;
import java.util.zip.*;
import java.awt.*;
class zipper
     public File file;
     public zipper(File f)
          file = new File(f);
     public void zipme()
          try
               FileInputStream fin = new FileInputStream(file);
               int a = (int)file.length();
               byte b[] = new byte[a];
               fin.read(b);
               ZipEntry k = new ZipEntry(fin.getName());//represents a single file in a zip archive!
               File newFile = new File("D:\\AZipFile.zip");
               ZipOutputStream zi = new ZipOutputStream(new FileOutputStream(newFile));
               zi.putNextEntry(k);
               zi.write(b,0,a);
               zi.close();
               fin.close();
          catch(FileNotFoundException e)
               //System.out.println("ERROR File not found");
          catch(IOException ee)
               //System.out.println("ERROR IO exception in Zipping file");
}