example in java of how to serialize and de-serialize a hashtable

HelpBill.java

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Hashtable;

public class StringInt {

	public static void main(String[] args) {
		Hashtable<String, Integer> ht = new Hashtable<String, Integer>();

		ht.put("Key", 1);

		ht.put("Greg", 4);

		try {
			ByteArrayOutputStream bos = new ByteArrayOutputStream();

			ObjectOutputStream out = new ObjectOutputStream(bos);
			out.writeObject(ht);

			System.out.println(bos.toString());

			ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
			ObjectInputStream in = new ObjectInputStream(bis);
			Object object = in.readObject();

			out.close();

		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}

}

This dumps out...

¬í �sr �java.util.Hashtable�»�%!Jä¸� �F 
loadFactorI 	thresholdxp?@     �w�   �   �t �Keysr �java.lang.Integer�â ¤÷�‡8� �I �valuexr �java.lang.Number†¬•��”à‹�  xp   �t �Gregsq ~ �   �x