How to Generate Barcodes Using Java, Barcodes Example

Let us see how to generate Barcodes with java, we have different types of barcodes, among them i am going to explain about ‘Code 128‘ type 🙂

Files Required

• BarCode128Java4s.java
• iText.jar [ Make sure you have iText jar file in your class path ]
• Install Barcode scanner in your Smart Phone to test, whether its working perfectly or not

BarCode128Java4s.java

package pdf;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.Barcode128;
import com.itextpdf.text.pdf.PdfWriter;

public class BarCode128 {

 public static void main(String[] args) throws FileNotFoundException, DocumentException {

    Document document = new Document(new Rectangle(PageSize.A4));    
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("c:/Java4s_BarCode_128.pdf"));    

    document.open();
	    document.add(new Paragraph("Code_128 Format_Java4s.com"));

		    Barcode128 code128 = new Barcode128();
		    code128.setGenerateChecksum(true);
		    code128.setCode("1234554321");    

	    document.add(code128.createImageWithBarcode(writer.getDirectContent(), null, null));
    document.close();

    System.out.println("Document Generated...!!!!!!");
  }

}

Explanation

I am going to explain much about iText API as we already explained clearly at Creating PDF with Java and iText

• At line number 19, specifying my output file
• At line number 24,25,26 created Barcode128 class object and added required data to be appeared in my Barcode
• That’s it.

Mobile Output

Its working fine 😉

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::. About the Author .::
		Sivateja Kandula - Java/J2EE Full Stack Developer Founder of Java4s - Get It Yourself, A popular Java/J2EE Programming Blog, Love Java and UI frameworks. You can sign-up for the Email Newsletter for your daily dose of Java tutorials.