| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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.examples.hssf.usermodel; |
| |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.poi.hssf.usermodel.HSSFCell; |
| import org.apache.poi.hssf.usermodel.HSSFRow; |
| import org.apache.poi.hssf.usermodel.HSSFSheet; |
| import org.apache.poi.hssf.usermodel.HSSFWorkbook; |
| import org.apache.poi.poifs.filesystem.POIFSFileSystem; |
| |
| /** |
| * This example demonstrates opening a workbook, modifying it and writing |
| * the results back out. |
| * |
| * @author Glen Stampoultzis (glens at apache.org) |
| */ |
| public class ReadWriteWorkbook { |
| public static void main(String[] args) throws IOException { |
| try (FileInputStream fileIn = new FileInputStream("workbook.xls")) { |
| POIFSFileSystem fs = new POIFSFileSystem(fileIn); |
| HSSFWorkbook wb = new HSSFWorkbook(fs); |
| HSSFSheet sheet = wb.getSheetAt(0); |
| HSSFRow row = sheet.getRow(2); |
| if (row == null) |
| row = sheet.createRow(2); |
| HSSFCell cell = row.getCell(3); |
| if (cell == null) |
| cell = row.createCell(3); |
| cell.setCellValue("a test"); |
| |
| // Write the output to a file |
| try (FileOutputStream fileOut = new FileOutputStream("workbookout.xls")) { |
| wb.write(fileOut); |
| } |
| } |
| } |
| } |