jlib.tool.Writer.java Source code

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Here is the source code for jlib.tool.Writer.java

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/*
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package jlib.tool;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

/**
 *
 * @author leo
 */
public class Writer {

    public static void write2Excel(List<List> input, String filename) {
        XSSFWorkbook workbook = new XSSFWorkbook();
        XSSFSheet sheet = workbook.createSheet("Amazon");

        int rowCount = 0;
        for (List aBook : input) {
            Row row = sheet.createRow(rowCount++);

            int columnCount = 0;
            for (Object field : aBook) {
                Cell cell = row.createCell(columnCount++);
                if (field instanceof String) {
                    cell.setCellValue((String) field);
                } else if (field instanceof Integer) {
                    cell.setCellValue((Integer) field);
                }
            }
        }

        try (FileOutputStream outputStream = new FileOutputStream(filename)) {
            workbook.write(outputStream);
        } catch (FileNotFoundException ex) {
            Logger.getLogger(Writer.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(Writer.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

}