Problem unzipping larger files with Java

Question

When I extract small zip files with java it works fine. If I extract large zip files I get errors. Can anyone help me out please?
import java.io.*;
import java.util.*;
import java.net.*;
import java.util.zip.*;
public class  updategrabtest
     public static String filename = "";
     //public static String filesave = "";
    public static boolean DLtest = false, DBtest = false;
     // update
     public static void main(String[] args)
          System.out.println("Downloading small zip");
          download("small.zip"); // a few k
          System.out.println("Extracting small zip");
          extract("small.zip");
          System.out.println("Downloading large zip");
          download("large.zip"); // 1 meg
          System.out.println("Extracting large zip");
          extract("large.zip");
          System.out.println("Finished.");
          // update database
          boolean maindb = false; //database wasnt updated
     // download
     public static void download (String filesave)
          try
               java.io.BufferedInputStream in = new java.io.BufferedInputStream(new
               java.net.URL("http://saveourmacs.com/update/" + filesave).openStream());
               java.io.FileOutputStream fos = new java.io.FileOutputStream(filesave);
               java.io.BufferedOutputStream bout = new BufferedOutputStream(fos,1024);
               byte data[] = new byte[1024];
               while(in.read(data,0,1024)>=0)
                    bout.write(data);
               bout.close();
               in.close();
          catch (Exception e)
               System.out.println ("Error writing to file");
               //System.exit(-1);
     // extract
     public static void extract(String filez)
          filename = filez;
        try
            updategrab list = new updategrab( );
            list.getZipFiles();
        catch (Exception e)
            e.printStackTrace();
     // extract (part 2)
    public static void getZipFiles()
        try
            //String destinationname = ".\\temp\\";
            String destinationname = ".\\";
            byte[] buf = new byte[1024]; //1k
            ZipInputStream zipinputstream = null;
            ZipEntry zipentry;
            zipinputstream = new ZipInputStream(
                new FileInputStream(filename));
            zipentry = zipinputstream.getNextEntry();
               while (zipentry != null)
                //for each entry to be extracted
                String entryName = zipentry.getName();
                System.out.println("entryname "+entryName);
                int n;
                FileOutputStream fileoutputstream;
                File newFile = new File(entryName);
                String directory = newFile.getParent();
                if(directory == null)
                    if(newFile.isDirectory())
                        break;
                fileoutputstream = new FileOutputStream(
                   destinationname+entryName);            
                while ((n = zipinputstream.read(buf, 0, 1024)) > -1)
                    fileoutputstream.write(buf, 0, n);
                fileoutputstream.close();
                zipinputstream.closeEntry();
                zipentry = zipinputstream.getNextEntry();
            }//while
            zipinputstream.close();
        catch (Exception e)
            e.printStackTrace();
}

Answer 1

In addition to the other advice, also change every instance of..
kingryanj wrote:
          catch (Exception e)
               System.out.println ("Error writing to file");
               //System.exit(-1);
..to..
catch (Exception e)
e.printStackTrace();
}I am a big fan of the stacktrace.