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   import java.io.BufferedOutputStream;
   import java.io.FileInputStream;
   import java.io.FileOutputStream;
   import java.io.IOException;
   import java.util.zip.ZipEntry;
   import java.util.zip.ZipInputStream;
  
   class ZipInputStreamSample {
           /**
   	 */
   	public static void main(String[] args) {
           byte[] buf = new byte[128];
  
           try {
               ZipInputStream in =
                   new ZipInputStream(new FileInputStream(args[0]));
  
               ZipEntry entry;
               while ((entry = in.getNextEntry()) != null) {
                   String filename = entry.getName();
                   System.out.println("Extracting " + filename + ".");
  
                   BufferedOutputStream out =
                       new BufferedOutputStream(new FileOutputStream(filename));
  
                   int size;
                   while ((size = in.read(buf, 0, buf.length)) != -1) {
                       out.write(buf, 0, size);
                   }
  
                   in.closeEntry();
                   out.flush();
                   out.close();
               }
  
               in.close();
           } catch (IOException e) {
               e.printStackTrace();
           }
       }
   }
  
   import java.io.BufferedInputStream;
   import java.io.FileInputStream;
   import java.io.FileOutputStream;
   import java.io.IOException;
   import java.util.zip.ZipEntry;
   import java.util.zip.ZipOutputStream;
  
   class ZipOutputStreamSample {
       /**
        */
       public static void main(String[] args) {
           byte[] buf = new byte[128];
  
           try {
               ZipOutputStream out =
                   new ZipOutputStream(new FileOutputStream(args[0]));
  
               for (int i = 0; i < args.length - 1; i++) {
                   System.out.println("Add to zip from " + args[i + 1] + ".");
  
                   BufferedInputStream in =
                       new BufferedInputStream(new FileInputStream(args[i + 1]));
  
                   ZipEntry entry = new ZipEntry(args[i + 1]);
                   out.putNextEntry(entry);
  
                   int size;
                   while ((size = in.read(buf, 0, buf.length)) != -1) {
                       out.write(buf, 0, size);
                   }
  
                   out.closeEntry();
                   in.close();
               }
  
               out.flush();
               out.close();
           } catch (IOException e) {
               e.printStackTrace();
           }
       }
   }