java与模式源代码

				package com.javapatterns.builder.rtfreader;
				
				public class Document
				{
					private static int value;
					private char token;
				    private static int counter = 0 ;
				
				    public Document()
				    {
				    	counter = 0 ;
				    }
				
					public char getNextToken()
				    {
						//Get the next token
				
				        if ( counter++  != 10)
							return token;
				        else
				            return RTFReader.EOF;
					}
				}