File theFile;                           
		FileOutputStream outStream;             
		ObjectOutputStream objOutStream;           

		theFile = new File("vystup.dat");

		try {
		   outStream = new FileOutputStream(theFile);
		   objOutStream = new ObjectOutputStream(outStream);
		   
		   // Ulozeni objektu
		   objOutStream.writeObject(new String("zzz"));

		   
		   objOutStream.close();
		   outStream.close();
		} catch(IOException e) {
		   e.printStackTrace();
		}   
		

		//-------------------------------------------------------------------
		                           
		FileInputStream inStream;             
		
		theFile = new File("vystup.dat");

		ObjectInputStream objInStream; 
		
		try {
			inStream = new FileInputStream(theFile);
			objInStream = new ObjectInputStream(inStream);
			
			try {
				//Nacteni objektu
				String s = (String) objInStream.readObject();
				System.out.println(s);
			} catch (ClassNotFoundException e) {
				e.printStackTrace();
			}
			objInStream.close();
		   inStream.close();
		} catch(IOException e) {
		   e.printStackTrace();
		}