Jaxb model class

Customer

import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

/**
 *
 * @author Rivet Systems
 */
@XmlRootElement
public class Customer {
    
    String name;
    String email;
    int id;

    public String getName() {
        return name;
    }

    @XmlElement
    public void setName(String name) {
        this.name = name;
    }

    public String getEmail() {
        return email;
    }

    @XmlElement
    public void setEmail(String email) {
        this.email = email;
    }

    public int getId() {
        return id;
    }

    @XmlAttribute
    public void setId(int id) {
        this.id = id;
    }
    
}

JAXBMarshall

import java.io.File;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;

/**
 *
 * @author Rivet Systems
 */
public class JAXBMarshall {

    public static void main(String[] args) {

        Customer customer = new Customer();
        customer.setId(100);
        customer.setName("uttesh");
        customer.setEmail("uttesh@gmail.com");

        try {

            File file = new File("customer.xml");
            JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);
            Marshaller jaxbMarshaller = jaxbContext.createMarshaller();

            // output pretty printed
            jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

            jaxbMarshaller.marshal(customer, file);
            jaxbMarshaller.marshal(customer, System.out);

        } catch (JAXBException e) {
            e.printStackTrace();
        }

    }
}

JAXBUnMarshall

import java.io.File;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;

/**
 *
 * @author Rivet Systems
 */
public class JAXBUnMarshall {

    public static void main(String[] args) {

        try {

            File file = new File("customer.xml");
            JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);
            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
            Customer customer = (Customer) jaxbUnmarshaller.unmarshal(file);
            System.out.println("Customer Name :"+customer.getName());
            System.out.println("Customer Email :"+customer.getEmail());
            System.out.println("Customer Id :"+customer.getId());

        } catch (JAXBException e) {
            e.printStackTrace();
        }

    }
}