unzip the zipArchive. Takes the zipfile location and output directory.

unzep.java

/**
   * Takes the zipfile location and output directory and returns the reference to output folder
	 * @param zfile
	 * @param outDir
	 * @throws IOException
	 * 
	 */
	
	public  File unzep(String zfile, String outDir) throws IOException
	{
		ZipInputStream zis = null;
		FileOutputStream fos = null;
		try
		{
			zis = new ZipInputStream(new FileInputStream(zfile));
		      {
		         byte[] buffer = new byte[4096];
		         ZipEntry ze;
		         File directory = new File(outDir);
		         if(!directory.exists())
		          {
			              //
			              //  If not, create a new one.
			              //
			                 
			              outDir = new File(outDir).mkdir();
			              System.err.println("...Directory Created -"+outDir);
			      }
		         
		         
		         
		         while ((ze = zis.getNextEntry()) != null)
		         {
		        	 
		            LOGGER.info("Extracting: "+ze +"["+outDir+"/"+ze.getName()+"]");
		            fos = new FileOutputStream(outDir+"/"+ze.getName());
		            
		               int numBytes;
		               while ((numBytes = zis.read(buffer, 0, buffer.length)) != -1)
		                  fos.write(buffer, 0, numBytes);
		            
		            zis.closeEntry();
		         }
		      }


		}
		catch(Exception ex)
		{
			LOGGER.error("",ex);
		}
		finally{
			if(zis!=null)
			{
				zis.close();
			}
			
			if(fos!=null)
			{
				fos.close();
			}
		}
		
		return outDir;
	}