/* ====================================================================   Copyright 2002-2004   Apache Software Foundation   Licensed under the Apache License, Version 2.0 (the "License");   you may not use this file except in compliance with the License.   You may obtain a copy of the License at       http://www.apache.org/licenses/LICENSE-2.0   Unless required by applicable law or agreed to in writing, software   distributed under the License is distributed on an "AS IS" BASIS,   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   See the License for the specific language governing permissions and   limitations under the License.==================================================================== */package org.apache.poi.hssf.util;import java.util.HashMap;import java.util.Map;/** * Holds a collection of Sheet names and their associated * reference numbers. * * @author Andrew C. Oliver (acoliver at apache dot org) * */public class SheetReferences{    Map map;    public SheetReferences()    {      map = new HashMap(5);    }     public void addSheetReference(String sheetName, int number) {       map.put(new Integer(number), sheetName);    }     public String getSheetName(int number) {       return (String)map.get(new Integer(number));    }}