如何将两个java对象合并为一个？

import org.apache.commons.beanutils.BeanUtils;

public class MergeObjects {
    public static void main(String[] args) {
        SourceObject source = new SourceObject();
        source.setName("John");
        source.setAge(25);

        DestinationObject destination = new DestinationObject();
        destination.setAddress("123 Main St");
        destination.setPhone("1234567890");

        try {
            BeanUtils.copyProperties(destination, source);
            System.out.println(destination.getName()); // Output: John
            System.out.println(destination.getAge()); // Output: 25
            System.out.println(destination.getAddress()); // Output: 123 Main St
            System.out.println(destination.getPhone()); // Output: 1234567890
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

class SourceObject {
    private String name;
    private int age;

    // Getters and setters
}

class DestinationObject {
    private String name;
    private int age;
    private String address;
    private String phone;

    // Getters and setters
}

public class MergeObjects {
    public static void main(String[] args) {
        SourceObject source = new SourceObject();
        source.setName("John");
        source.setAge(25);

        DestinationObject destination = new DestinationObject();
        destination.setAddress("123 Main St");
        destination.setPhone("1234567890");

        destination.setName(source.getName());
        destination.setAge(source.getAge());

        System.out.println(destination.getName()); // Output: John
        System.out.println(destination.getAge()); // Output: 25
        System.out.println(destination.getAddress()); // Output: 123 Main St
        System.out.println(destination.getPhone()); // Output: 1234567890
    }
}

class SourceObject {
    private String name;
    private int age;

    // Getters and setters
}

class DestinationObject {
    private String name;
    private int age;
    private String address;
    private String phone;

    // Getters and setters
}