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POWriting XML file from an ArrayList - wrong output
 

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    <p>I'm trying to write a <code>XML</code> file from an <code>ArrayList&lt;Element&gt;</code>. However, the output is not what I expected and I can't seem to find out the source of the problem. Can you please help me?</p> <p>Here is some of my code:</p> <pre><code> if (e.getSource() == saveMenu) { writeToXML(); JOptionPane.showMessageDialog(Simulation.this, "File saved", "Simulation", JOptionPane.INFORMATION_MESSAGE); } public void writeToXML() throws IOException { int size = alElementToXML.size(); for (int i = 0; i &lt; size; i++) { alIds.add(alElementToXML.get(i).attributeValue("id")); } OutputFormat format = OutputFormat.createPrettyPrint(); format.setEncoding("UTF-8"); XMLWriter xmlWriter = null; xmlWriter = new XMLWriter(new OutputStreamWriter( new FileOutputStream("Simulation_" + MASG_GUI.getContainerNameTxt().getText() + "_Details.xml"), "UTF8"), format); try { for (int i = 0; i &lt; size; i++) { xmlWriter.write(configs.XMLwriterDOM4J.createXMLDocumentForSimulations(alElementToXML, alIds.get(i))); } } finally { xmlWriter.flush(); xmlWriter.close(); } } </code></pre> <p>This is the <code>createXMLDocumentForSimulations</code> method:</p> <pre><code>public static Document createXMLDocumentForSimulations(ArrayList&lt;Element&gt; elems, String id) { Document document = DocumentHelper.createDocument(); Element root = document.addElement("simulation"); Element agent1 = root.addElement("member").addAttribute("id", id); int size = Simulation.getAlElementToXML().size(); for (int i = 0; i &lt; size; i++) { agent1.addElement(elems.get(i).asXML()); } return document; } </code></pre> <p>and one example of the output I get:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;simulation&gt; &lt;member id="House"&gt; &lt;&lt;member id="House"&gt;&lt;id&gt;1&lt;/id&gt;&lt;type&gt;1&lt;/type&gt;&lt;max_usage&gt;1&lt;/max_usage&gt;&lt;min_usage&gt;1&lt;/min_usage&gt;&lt;average_usage&gt;1&lt;/average_usage&gt;&lt;/member&gt;/&gt; &lt;&lt;member id="CSP"&gt;&lt;id&gt;1&lt;/id&gt;&lt;type&gt;1&lt;/type&gt;&lt;/member&gt;/&gt; &lt;&lt;member id="VPP"&gt;&lt;id&gt;6&lt;/id&gt;&lt;type&gt;6&lt;/type&gt;&lt;/member&gt;/&gt; &lt;/member&gt; &lt;/simulation&gt; &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;simulation&gt; &lt;member id="CSP"&gt; &lt;&lt;member id="House"&gt;&lt;id&gt;1&lt;/id&gt;&lt;type&gt;1&lt;/type&gt;&lt;max_usage&gt;1&lt;/max_usage&gt;&lt;min_usage&gt;1&lt;/min_usage&gt;&lt;average_usage&gt;1&lt;/average_usage&gt;&lt;/member&gt;/&gt; &lt;&lt;member id="CSP"&gt;&lt;id&gt;1&lt;/id&gt;&lt;type&gt;1&lt;/type&gt;&lt;/member&gt;/&gt; &lt;&lt;member id="VPP"&gt;&lt;id&gt;6&lt;/id&gt;&lt;type&gt;6&lt;/type&gt;&lt;/member&gt;/&gt; &lt;/member&gt; &lt;/simulation&gt; </code></pre> <p>What I wanted was something like this:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;simulation&gt; &lt;member id="House"&gt; &lt;id&gt;1&lt;/id&gt; &lt;type&gt;1&lt;/type&gt; &lt;max_usage&gt;1&lt;/max_usage&gt; &lt;min_usage&gt;1&lt;/min_usage&gt; &lt;average_usage&gt;1&lt;/average_usage&gt; &lt;/member&gt; &lt;member id="VPP"&gt; &lt;id&gt;6&lt;/id&gt; &lt;type&gt;6&lt;/type&gt; &lt;/member&gt; &lt;/simulation&gt; </code></pre> <p>What am I doind wrong and how can I fix it to obtain the expected output?</p> <p>Thanks</p>
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