Zip file in android

import android.util.Log; 
import java.io.BufferedInputStream; 
import java.io.BufferedOutputStream; 
import java.io.FileInputStream; 
import java.io.FileOutputStream; 
import java.util.zip.ZipEntry; 
import java.util.zip.ZipOutputStream; 


  public class Compress { 
      private static final int BUFFER = 2048; 
     
      private String[] _files; 
      private String _zipFile; 
     
      public Compress(String[] files, String zipFile) { 
        _files = files; 
        _zipFile = zipFile; 
      } 
     
      public void zip() { 
        try  { 
          BufferedInputStream origin = null; 
          FileOutputStream dest = new FileOutputStream(_zipFile); 
     
          ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(dest)); 
     
          byte data[] = new byte[BUFFER]; 
     
          for(int i=0; i < _files.length; i++) { 
            Log.v("Compress", "Adding: " + _files[i]); 
            FileInputStream fi = new FileInputStream(_files[i]); 
            origin = new BufferedInputStream(fi, BUFFER); 
            ZipEntry entry = new ZipEntry(_files[i].substring(_files[i].lastIndexOf("/") + 1)); 
            out.putNextEntry(entry); 
            int count; 
            while ((count = origin.read(data, 0, BUFFER)) != -1) { 
              out.write(data, 0, count); 
            } 
            origin.close(); 
          } 
     
          out.close(); 
        } catch(Exception e) { 
          e.printStackTrace(); 
        } 
     
      } 
     
    }