Hello World, Barcode in Java, using ZXing

I have posted an article about using "Barbecue" for generating bar codes in Java, a few days ago.

 Yesterday I read this excellent post : about using "ZXing" Java Library (Open Source), to generate bar code in Java programs.

This library looks very interesting and powerful. Here is a Hello World.

ZXing ("Zebra Crossing")

The description is from the library's site
"ZXing (pronounced "zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java. Our focus is on using the built-in camera on mobile phones to photograph and decode barcodes on the device, without communicating with a server."

Project's Site :
http://code.google.com/p/zxing/

Installing

• Download the current version (Zxing-1.6.zip)
• Unzip in a folder of your choice, this will give "zxing-1.6" folder
• For normal Java programs, two .jar files must be built
• One of the possibilities is to use "ant"
• cd zxing-1.6/core
• Type "ant" you'll get in the same folder "core.jar"
• cd zxing-1.6/javase
• Type "ant" you'll get here "javase.jar"
• In your Java project, create a folder (give it any name), for instance "lib"
• Copy "core.jar" and "javase.jar" to YourProject/lib
• Add these two .jar files to YourProject/properties/Java Build Path

Hello World

package com.java_javafx.ka;

import java.io.File;
import java.io.FileOutputStream;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.oned.Code128Writer;

/**
 *
 * @author Kaesar ALNIJRES
 *
 */
public class HelloWorld {

  
    public static void main(String[] args) {
      
           int width = 440;
           int height = 48;
           
             
           BitMatrix bitMatrix;
        try {
            bitMatrix = new Code128Writer().encode("Hello World !!!",BarcodeFormat.CODE_128,width,height,null);
            MatrixToImageWriter.writeToStream(bitMatrix, "png", new FileOutputStream(new File("/home/kas/zxing_barcode.png")));
        } catch (WriterException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}