JavaCv - Use classifier file in javacv - java

I use some tutorial From Python and C++ to create my own code for Guess the feeling in images , already found some code and created some code but for use some file , I don't know what it is and what must to do for using it in java Like emotion_classifier_model.xml
anyone can help me to share a code for using this file in JavaCv I will be grateful.(Need code to put image on it and guess the feeling with this xml file.)
link to github from tutorial I use
I use CascadeClassifier From the package org.opencv.objdetect.CascadeClassifier and I think miss some point.
if you know some tutorial in java that use opencv or javacv that tutorial the train and use the trained data I will be grateful too , for sharing it with me.

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Convert string text to GCode

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What we ended up doing:
App asks for a String as input;
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We developed a parser to convert a .svg to g-code.
It worked but it's not the best solution, we're looking to implement something that runs python in Android, as there are many pythons that do all the work already, but that's how we've done it and it's working by now.

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I am currently in the process of developing a Java program that downloads/streams some anime videos:
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Thank you.
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Create an empty CD-ROM image and inject/extract files into/from it using Java

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I want to recognize the barcode from the image file using Java, but I am a beginner to development. So I do not have any idea on this. Please help me.
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i have written a while ago
http://www.local-guru.net/blog/2009/09/22/barcodescanner-in-pure-processing
The following links may help you. Check them out.
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Barcode image generator in java
EDIT after 1st comment:
To get barcode from file, check the following link:
Java Barcode API
Java Barcode generator
Asprise commercial library is the best solution
You have other alternate which can be useful
http://barbecue.sourceforge.net/

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