JAXBContext jaxbContext = JAXBContext.newInstance("com.example.mypackage"); JAXBContext jaxbContext = JAXBContext.newInstance(MyClass.class); @XmlRootElement public class Person { @XmlElement public String name; @XmlElement public int age; } JAXBContext jaxbContext = JAXBContext.newInstance(Person.class); Marshaller marshaller = jaxbContext.createMarshaller(); Person person = new Person(); person.name = "John Doe"; person.age = 30; marshaller.marshal(person, new File("person.xml")); Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); Person unmarshalledPerson = (Person) unmarshaller.unmarshal(new File("person.xml"));


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