<?xml version="1.0" encoding="UTF-8"?>
<company>
  <employee id="E001">
    <firstName>Rajesh</firstName>
    <lastName>Kumar</lastName>
    <department>Software Engineering</department>
    <salary>95000</salary>
    <isActive>true</isActive>
    <address>
      <street>123 Tech Boulevard</street>
      <city>Bangalore</city>
      <zipCode>560001</zipCode>
    </address>
  </employee>
</company>

import javax.xml.bind.annotation.*;

@XmlRootElement(name = "company")
public class Company {
    @XmlElement
    private Employee employee;

    // Getters and setters...
}

public class Employee {
    @XmlAttribute
    private String id;

    @XmlElement
    private String firstName;

    @XmlElement
    private String lastName;

    @XmlElement
    private String department;

    @XmlElement
    private Double salary;

    @XmlElement
    private Boolean isActive;

    @XmlElement
    private Address address;

    // Getters and setters...
}