How to read .mat file without using matlab (using Scipy library in Python)

import scipy.io as sio
# read a .mat file
animal = sio.loadmat("animals.mat")

# sample output
{'__header__': b'MATLAB 5.0 MAT-file, Platform: GLNX86, ...
 '__version__': '1.0',
 '__globals__': [],
 'names': 
 'features': a
}

This simple line of code can be used reading .mat file without MATLAB installed in your computer.

How To Read File In Java – BufferedReader

JDK 7, read file in Java and automatically close the file.

1:        BufferedReader br = new BufferedReader(new FileReader(file_path));  
2:        String text="";  
3:        String currentLine;  
4:        while ((currentLine = br.readLine())!=null){  
5:          text = text+currentLine;  
6:        }  

How to read n-quads file? Jena read n-quads file with model size zero?

Reason : A Jena Model is a single graph and it can't hold named graphs (which are in n-quads file)

Solution : Use DataSet to get the set of all graphs in n-quads file first and use model to get every set.

1:    public static void main(String[] args) {  
2:      // print every Model(Graph) size in n-quads file 
3:      Model model = ModelFactory.createDefaultModel();  
4:      Dataset dataset = RDFDataMgr.loadDataset("sample.nq");  
5:      Iterator it = dataset.listNames();  
6:      while(it.hasNext()){  
7:        String graphName = (String) it.next();  
8:        model = dataset.getNamedModel(graphName);  
9:        System.out.println(graphName+":"+model.size());  
10:      }  
11:    }