Convertion of Marshal Java object to a file in java

import java.io.FileOutputStream;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.annotation.XmlRootElement;

public class JavaToXMLDemo {
public static void main(String[] args) throws Exception {
JAXBContext context = JAXBContext.newInstance(Employee.class);

Marshaller m = context.createMarshaller();
m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

Employee object = new Employee();
object.setCode("CA");
object.setName("Cath");
object.setSalary(300);

m.marshal(object, new FileOutputStream("result.xml"));

}
}

@XmlRootElement
class Employee {
private String code;

private String name;

private int salary;

public String getCode() {
return code;
}

public void setCode(String code) {
this.code = code;
}

public String getName() {
return name;
}

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

public int getSalary() {
return salary;
}

public void setSalary(int population) {
this.salary = population;
}
}