public static void main(String[] args){
    XXHashFactory factory = XXHashFactory.fastestInstance();
 
    try{
        byte[] data = "12345345234572".getBytes("UTF-8");
        ByteArrayInputStream in = new ByteArrayInputStream(data);
 
        int seed = 0x9747b28c;  // Use to initialize the hash value, use whatever
                                //  value you want, but always the same.
 
        StreamingXXHash32 hash32 = factory.newStreamingHash32(seed);
 
        byte[] buf = new byte[8]; // For real-world usage, use a larger buffer, like 8192 bytes
        for (;;){
            int read = in.read(buf);
            if (read == -1){
                break;
            }
            hash32.update(buf, 0, read);
        }
        int hash = hash32.getValue();
 
        System.out.println(hash); // Expected output: 506742924
    }
    catch(UnsupportedEncodingException ex){
        System.out.println(ex);
    }
    catch(IOException ex){
        System.out.println(ex);
    }
 
}

public static void main(String[] args){
    XXHashFactory factory = XXHashFactory.fastestInstance();
    int seed = 0x9747b28c;    // Use to initialize the hash value, use whatever
                            //    value you want, but always the same.
    StreamingXXHash32 hash32 = factory.newStreamingHash32(seed);
 
    try{
        byte[] bufferBlock = new byte[8192]; // 8192 bytes
        FileInputStream fileInputStream = new FileInputStream(new File("C:\\temp\\Xuan\\test.txt"));
 
        int read;
        while ((read = fileInputStream.read(bufferBlock))!=-1){
            hash32.update(bufferBlock, 0, read);
        }
        fileInputStream.close();
 
        int hash = hash32.getValue();
 
        System.out.println(hash); // Output
    }
    catch(UnsupportedEncodingException ex){
        System.out.println(ex);
    }
    catch(IOException ex){
        System.out.println(ex);
    }
}