Java tutorial
/* * XSSFBuilder - an API making work with poi spreadsheets more time efficient. * (C) 2013, Magnus Drougge <magnus.drougge@gmail.com> * * This file is part of XSSFBuilder. * * XSSFBuilder is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * XSSFBuilder is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with XSSFBuilder. If not, see <http://www.gnu.org/licenses/>. */ package se.minstrel.tools.xssfbuilder; import java.awt.Color; import java.io.FileOutputStream; import java.io.IOException; import java.util.Date; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.junit.Test; public class XSSFBuilderFactoryTest { @Test public void test() { XSSFWorkbook xwb = new XSSFWorkbook(); WorkbookBuilder wb = XSSFBuilderFactory.createBuilder(xwb); wb.styleBuilder().fontSize((short) 8).makeDefault(); SheetBuilder sheet = wb.sheet("sheet1"); sheet.clearMarkers(); sheet.cell(0, 0).value("Column 1").style(sheet.styleBuilder().bold().bgColor(Color.GRAY).apply()); sheet.cell(0, 1).value("Column 2").style(sheet.styleBuilder().bold().bgColor(Color.GRAY).apply()); sheet.cell(0, 2).value("Column 3").style(sheet.styleBuilder().bold().bgColor(Color.GRAY).apply()); for (int r = 1; r <= 3; r++) { for (int c = 0; c < 3; c++) { sheet.cell(r, c).value(new Double(r * c)); } } sheet.cell(4, 0).formula(sheet.formula().sum(1, 3, 0, 0)).mark("Mark1"); sheet.cell(4, 1).formula(sheet.formula().sum(1, 3, 1, 1)).mark("Mark1"); sheet.cell(4, 2).formula(sheet.formula().sum(1, 3, 2, 2)).mark("Mark1"); sheet.cell(4, 3).formula(sheet.formula().sumMarkers("Mark1")); sheet.applyAreaStyle(4, 4, 0, 3, sheet.styleBuilder().italics().bgColor(Color.BLACK).fgColor(Color.YELLOW).apply()); sheet.cell(6, 0).value("Todays date").style(sheet.styleBuilder().bold().apply()); sheet.cell(6, 1).value(new Date()).style(sheet.styleBuilder().format("yyyy-mm-dd").apply()); sheet.col(0).autoWidth(); sheet.autoWidth(true); try { write(xwb, "out.xlsx"); } catch (IOException ioe) { ioe.printStackTrace(); } } private void write(XSSFWorkbook workbook, String filename) throws IOException { try (FileOutputStream os = new FileOutputStream(filename)) { workbook.write(os); os.flush(); } } }