How to Create Excel Pivot Table using Java

import com.spire.xls.*;

public class CreatePivotTable {
public static void main(String[] args) {

//Load a sample Excel workbook
Workbook workbook = new Workbook();

//Get the first worksheet
Worksheet sheet = workbook.getWorksheets().get(0);

// Add a PivotTable to the worksheet
CellRange dataRange = sheet.getCellRange("A1:D11");
PivotCache cache = workbook.getPivotCaches().add(dataRange);
PivotTable pt = sheet.getPivotTables().add("Pivot Table", sheet.getCellRange("F3"), cache);

// Add the fields to the row area.
PivotField pf=null;
if (pt.getPivotFields().get("Country") instanceof PivotField){
pf= (PivotField) pt.getPivotFields().get("Country");

PivotField pf2 =null;
if (pt.getPivotFields().get("Product") instanceof PivotField){
pf2= (PivotField) pt.getPivotFields().get("Product");

// Add the field to the data area.
pt.getDataFields().add(pt.getPivotFields().get("Amount"), "SUM of Amount", SubtotalTypes.Sum);

//Set PivotTable style

//Save the document
workbook.saveToFile("CreatePivotTable.xlsx", ExcelVersion.Version2013);




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