Invisiblize Textual Data When Creating Barcode&QR code in Java

import com.spire.barcode.BarCodeGenerator;
import com.spire.barcode.BarCodeType;
import com.spire.barcode.BarcodeSettings;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class CreateBarcode {
    public static void main(String[] args) throws IOException {
        BarcodeSettings settings = new BarcodeSettings();//Instantiate BarcodeSettings object
        settings.setType(BarCodeType.Codabar);//Set the Barcode type
        settings.setData("123456789");//Set the Barcode data
        settings.setShowText(false);//Make the textual data invisible
        settings.setShowTextOnBottom(true);//Make the textual data visible at the bottom of the Barcode
        settings.setX(0.8f);//Set width for the black and white stripes
        settings.setImageHeight(50);//Set height for the created Barcode image
        settings.setImageWidth(70);//Set width for the created Barcode image
        settings.hasBorder(true);//Make the border visible
        settings.setBorderColor(new Color(135,206,250));//Set the border color
        settings.setBorderWidth(1);//Set the border width
        settings.setBackColor(new Color(240,255,255));//Set background color for the Barcode

        BarCodeGenerator barCodeGenerator = new BarCodeGenerator(settings);//Instantiage BarCodeGenerator object
        BufferedImage bufferedImage = barCodeGenerator.generateImage();//Generate image data based on settings and save it to BufferedImage instance
        ImageIO.write(bufferedImage, "png", new File("Codabar.png"));//Save the Barcode as PNG
    }
}

import com.spire.barcode.*;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class CreateQR {
    public static void main(String[] args) throws IOException {

               BarcodeSettings settings = new BarcodeSettings();//Instantiate BarcodeSettings object
        settings.setType(BarCodeType.QR_Code);//Set Barcode type as QR code
        settings.setData("Hello 123456789");//Set the data 
        settings.setShowText(false);// Make the textual data invisible
        settings.setQRCodeDataMode(QRCodeDataMode.Alpha_Number);//Set data mode
        settings.setImageWidth(50);// Set widthfor the created QR code image
        settings.setImageHeight(50);// Set height for the created QR code image
        settings.setX(3.0f);//Set width for QR code model
        settings.setQRCodeECL(QRCodeECL.H);//Set QR code ECL
        settings.hasBorder(false);//make the border invisible

        BarCodeGenerator barCodeGenerator = new BarCodeGenerator(settings);//Instantiage BarCodeGenerator object

        BufferedImage bufferedImage = barCodeGenerator.generateImage();//Generate image data based on settings and save it to BufferedImage instance
        ImageIO.write(bufferedImage, "png", new File("QRCode.png"));//Save the QR code as PNG
    }
}