This function takes an XML file and returns the data as a double array

XML.java

// Dependencies: javax.xml | org.w3c.com | org.xml.sax
public static String[][] get(String file) {
    String[][] data = null;

    // 1. Prepare Xpath
    XPathFactory xpf = XPathFactory.newInstance();
    XPath xPath = xpf.newXPath();

    try {
        // 2. Create XML File
        InputSource xmlFile = new InputSource(file);

        // 3. Node Settings
        // Parent Node
        NodeList cars = (NodeList) xPath.evaluate("/cars/car", xmlFile, XPathConstants.NODESET);
        // Child Nodes
        XPathExpression xBodyStyle = xPath.compile("bodyStyle");

        // 4. Define the array : columns (fields) must be known and set manually
        int rows = cars.getLength();
        int columns = 4;
        data = new String[rows][columns];

        // 4. Iterate Through XML Based on Parent Node
        for(int i=0; i<cars.getLength(); i++) {
            // Create a Node for each record
            Node carRecord = cars.item(i);

            // Capture Data for Each Record and Store in Variables
            String carType = carRecord.getAttributes().item(0).getTextContent();
            String bodyStyle = xBodyStyle.evaluate(carRecord, XPathConstants.STRING).toString();

            // Place into Array
            data[i][0] = carType;
            data[i][1] = bodyStyle;
        }
    } catch (XPathExpressionException e) {
        System.out.println("ERROR READING XML FILE");
        e.toString();
    }
    return data;
}