Excel AutoFiltering in Java

Following example shows how to filter rows in a specific cell range of an Excel worksheet with Java.

Filtered rows are hidden in all output file formats. Active AutoFilter is written only to XLSX file format.

Excel AutoFiltering Screenshot
import com.gembox.spreadsheet.*;

import java.time.LocalDateTime;
import java.util.Random;

class Program {

    public static void main(String[] args) throws java.io.IOException {
        // If using Professional version, put your serial key below.
        SpreadsheetInfo.setLicense("FREE-LIMITED-KEY");

        ExcelFile ef = new ExcelFile();
        ExcelWorksheet ws = ef.addWorksheet("Filtering");

        int rowCount = %RowCount%;

        // Specify sheet formatting.
        ws.getRow(0).getStyle().getFont().setWeight(ExcelFont.BOLD_WEIGHT);
        ws.getColumn(0).setWidth(3, LengthUnit.CENTIMETER);
        ws.getColumn(1).setWidth(3, LengthUnit.CENTIMETER);
        ws.getColumn(2).setWidth(3, LengthUnit.CENTIMETER);
        ws.getColumn(2).getStyle().setNumberFormat("[$$-409]#,##0.00");
        ws.getColumn(3).setWidth(3, LengthUnit.CENTIMETER);
        ws.getColumn(3).getStyle().setNumberFormat("yyyy-mm-dd");

        CellRange cells = ws.getCells();

        // Specify header row.
        cells.get(0, 0).setValue("Departments");
        cells.get(0, 1).setValue("Names");
        cells.get(0, 2).setValue("Salaries");
        cells.get(0, 3).setValue("Deadlines");

        // Insert random data to sheet.
        Random random = new Random();
        String[] departments = new String[] { "Legal", "Marketing", "Finance", "Planning", "Purchasing" };
        String[] names = new String[] { "John Doe", "Fred Nurk", "Hans Meier", "Ivan Horvat" };
        for (int i = 0; i < rowCount; ++i) {
            cells.get(i + 1, 0).setValue(departments[random.nextInt(departments.length)]);
            cells.get(i + 1, 1).setValue(names[random.nextInt(names.length)] + ' ' + (i + 1));
            cells.get(i + 1, 2).setValue((random.nextInt(91) + 10) * 100);
            cells.get(i + 1, 3).setValue(LocalDateTime.now().plusDays(random.nextInt(3) - 1));
        }

        // Specify range which will be filtered.
        CellRange filterRange = ws.getCells().getSubrangeAbsolute(0, 0, rowCount, 3);

        // Show only rows which satisfy following conditions:
        // - 'Departments' value is either "Legal" or "Marketing" or "Finance" and
        // - 'Names' value contains letter 'e' and
        // - 'Salaries' value is in the top 20 percent of all 'Salaries' values and
        // - 'Deadlines' value is today's date.
        // Shown rows are then sorted by 'Salaries' values in the descending order.
        filterRange.filter().
                byValues(0, "Legal", "Marketing", "Finance").
                byCustom(1, FilterOperator.EQUAL, "*e*").
                byTop10(2, true, true, 20).
                byDynamic(3, DynamicFilterType.TODAY).
                sortBy(2, true).
                apply();

        ef.save("Filtering.%OutputFileType%");
    }
}

Check next example or download examples from GitHub.