[java] Loading in Properties

import java.lang.*;
import java.io.*;
import java.util.*;

class Console_Practice
{
	public static void main(String args[]) throws IOException
	{ 
		Properties balance = new Properties(); 
		
		// try to open phonebook.dat
		FileInputStream fin = null;
		
		try
		{
			fin = new FileInputStream("c:\\phonebook.dat");
		}
		catch (FileNotFoundException e)
		{
			System.out.println("Error opening file.");
		}
		
		// Load contents of phonebook.dat. ERROR: NOT WORKING HERE
		try
		{
			while (fin != null)
			{
				balance.load(fin);
				fin.close();
			}
		}
		catch (IOException e)
		{
			System.out.println("Error reading file.");
		}
 
 		// Try saving the phone book.
		try 
		{
			FileOutputStream fout = new FileOutputStream("c:\\phonebook.dat");
			balance.store(fout, "Telephone Book");
			fout.close();
		}
		catch (FileNotFoundException e) {}
		
		
	}
}