lr10 -> e1, e2

.gitignore

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+.vscode/*

lr10/task_1/e1.java

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+package lr10.task_1;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import java.io.File;
+
+public class e1 {
+    public static void main(String[] args) {
+        try {
+            DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
+            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
+
+            // Создание корневого элемента
+            Document doc = docBuilder.newDocument();
+            Element rootElement = doc.createElement("library");
+            doc.appendChild(rootElement);
+
+            // Добавление первой книги
+            Element book1 = doc.createElement("book");
+            rootElement.appendChild(book1);
+
+            Element title1 = doc.createElement("title");
+            title1.appendChild(doc.createTextNode("Война и мир"));
+            book1.appendChild(title1);
+
+            Element author1 = doc.createElement("author");
+            author1.appendChild(doc.createTextNode("Лев Толстой"));
+            book1.appendChild(author1);
+
+            Element year1 = doc.createElement("year");
+            year1.appendChild(doc.createTextNode("1869"));
+            book1.appendChild(year1);
+
+            // Добавление второй книги
+            Element book2 = doc.createElement("book");
+            rootElement.appendChild(book2);
+
+            Element title2 = doc.createElement("title");
+            title2.appendChild(doc.createTextNode("Мастер и Маргарита"));
+            book2.appendChild(title2);
+
+            Element author2 = doc.createElement("author");
+            author2.appendChild(doc.createTextNode("Михаил Булгаков"));
+            book2.appendChild(author2);
+
+            Element year2 = doc.createElement("year");
+            year2.appendChild(doc.createTextNode("1967"));
+            book2.appendChild(year2);
+
+            // Запись XML-файла
+            doc.setXmlStandalone(true);
+            doc.normalizeDocument();
+
+            javax.xml.transform.TransformerFactory tf = javax.xml.transform.TransformerFactory.newInstance();
+            javax.xml.transform.Transformer transformer = tf.newTransformer();
+            transformer.setOutputProperty(javax.xml.transform.OutputKeys.ENCODING, "UTF-8");
+            transformer.setOutputProperty(javax.xml.transform.OutputKeys.STANDALONE, "yes");
+            transformer.setOutputProperty(javax.xml.transform.OutputKeys.INDENT, "yes");
+
+            javax.xml.transform.dom.DOMSource source = new javax.xml.transform.dom.DOMSource(doc);
+
+            javax.xml.transform.stream.StreamResult result = new javax.xml.transform.stream.StreamResult(
+                    new File("example.xml"));
+
+            transformer.transform(source, result);
+
+            System.out.println("XML-файл успешно создан!");
+
+        } catch (Exception pce) {
+            pce.printStackTrace();
+        }
+    }
+}

lr10/task_1/e2.java

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+package lr10.task_1;
+
+import java.io.File;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.DocumentBuilder;
+import org.w3c.dom.Document;
+import org.w3c.dom.NodeList;
+import org.w3c.dom.Node;
+import org.w3c.dom.Element;
+
+public class e2 {
+    public static void main(String[] args) {
+        try {
+            File inputFile = new File("example.xml");
+
+            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
+            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
+            Document doc = dBuilder.parse(inputFile);
+
+            doc.getDocumentElement().normalize();
+
+            System.out.println("Корневой элемент: " + doc.getDocumentElement().getNodeName());
+
+            NodeList nodeList = doc.getElementsByTagName("book");
+
+            for (int i = 0; i < nodeList.getLength(); i++) {
+                Node node = nodeList.item(i);
+                System.out.println("\nТекущий элемент: " + node.getNodeName());
+
+                if (node.getNodeType() == Node.ELEMENT_NODE) {
+                    Element element = (Element) node;
+
+                    System.out.println("Название книги: "
+                            + element.getElementsByTagName("title").item(0).getTextContent());
+
+                    System.out.println("Автор: "
+                            + element.getElementsByTagName("author").item(0).getTextContent());
+
+                    System.out.println("Год издания: "
+                            + element.getElementsByTagName("year").item(0).getTextContent());
+                }
+            }
+
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}