Bar code generator in java

How to generate bar code for each items in java

package com.proximotech.etrade.utils;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;

import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.Barcode;
import com.lowagie.text.pdf.Barcode128;
import com.lowagie.text.pdf.BarcodeEAN;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;

public class BarcodeCreator {

    public String barcodeToPdf() throws FileNotFoundException, DocumentException{

        Document document = new Document();
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(
            "lumina730.pdf"));
        document.open();

        PdfContentByte cb = writer.getDirectContent();
        BarcodeEAN codeEAN = new BarcodeEAN();
        codeEAN.setCode("1439112001143");
        Paragraph p = new Paragraph();
       
       
        // CODE 128
        document.add(new Paragraph("Barcode 128"));
        Barcode128 code128 = new Barcode128();
        code128.setCode("9112001 Deepak");
        document.add(code128.createImageWithBarcode(cb, null, null));

        document.add(p);
        document.close();
     
        return null;
    }
   
  public static void main(String[] javacode) throws Exception {
     
  }
}

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