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POUsing XML to populate a JComboBox - something missing
 

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  1. POUsing XML to populate a JComboBox - something missing
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    <p>it's me again. I have the following XML file:</p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;components&gt; &lt;resources&gt; &lt;resource id="House"&gt; &lt;id&gt;int&lt;/id&gt; &lt;type&gt;string&lt;/type&gt; &lt;maxUsage&gt;float&lt;/maxUsage&gt; &lt;minUsage&gt;float&lt;/minUsage&gt; &lt;averageUsage&gt;float&lt;/averageUsage&gt; &lt;/resource&gt; &lt;resource id="Commerce"&gt; &lt;id&gt;int&lt;/id&gt; &lt;type&gt;string&lt;/type&gt; &lt;maxUsage&gt;float&lt;/maxUsage&gt; &lt;minUsage&gt;float&lt;/minUsage&gt; &lt;averageUsage&gt;float&lt;/averageUsage&gt; &lt;/resource&gt; &lt;resource id="Industry"&gt; &lt;id&gt;int&lt;/id&gt; &lt;type&gt;string&lt;/type&gt; &lt;maxUsage&gt;float&lt;/maxUsage&gt; &lt;minUsage&gt;float&lt;/minUsage&gt; &lt;averageUsage&gt;float&lt;/averageUsage&gt; &lt;/resource&gt; &lt;/resources&gt; &lt;agregatorsType1&gt; &lt;agregator1 id="CSP"&gt; &lt;id&gt;int&lt;/id&gt; &lt;type&gt;string&lt;/type&gt; &lt;/agregator1&gt; &lt;agregator1 id="Microgrid"&gt; &lt;id&gt;int&lt;/id&gt; &lt;type&gt;string&lt;/type&gt; &lt;/agregator1&gt; &lt;/agregatorsType1&gt; &lt;soagregatorsType0&gt; &lt;agregator0 id="VPP"&gt; &lt;id&gt;int&lt;/id&gt; &lt;type&gt;string&lt;/type&gt; &lt;/agregator0&gt; &lt;/agregatorsType0&gt; &lt;/components&gt; </code></pre> <p>and I want to populate a JComboBox with the id's of each Resource (House, Commerce and Industry).</p> <p>I have the following method:</p> <pre><code>public static String[] readResourcesXML(String fileName) throws IOException, ClassNotFoundException, Exception { //Gets XML DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = factory.newDocumentBuilder(); Document documento = docBuilder.parse(fileName); //Searches all text documento.getDocumentElement().normalize(); //Gets elements from xml Element raiz = documento.getDocumentElement(); NodeList listaResources = raiz.getElementsByTagName("resources"); //Search all resources int tam = listaResources.getLength(); String[] vecResources = new String[tam]; for (int i = 0; i &lt; tam; i++) { Element elem = (Element) listaResources.item(i); vecResources[i] = elem.getAttribute("/resource/@id"); } //returns an array with all the id's of the resources return vecResources; } </code></pre> <p>NOTE: The String fileName has the following value: "src\configs\features.xml"</p> <p>The problem is, the JComboBox is always empty. What am I missing?</p> <p>Thanks ;)</p>
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