使用JDK8流如何迭代嵌套对象

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        // 创建嵌套对象列表
        List<OuterObject> outerObjects = new ArrayList<>();
        outerObjects.add(new OuterObject("OuterObject1", new InnerObject("InnerObject1")));
        outerObjects.add(new OuterObject("OuterObject2", new InnerObject("InnerObject2")));
        outerObjects.add(new OuterObject("OuterObject3", new InnerObject("InnerObject3")));

        // 使用流迭代嵌套对象
        outerObjects.stream()
                .flatMap(outerObject -> Stream.of(outerObject.getInnerObject()))
                .forEach(innerObject -> System.out.println(innerObject.getName()));
    }
}

class OuterObject {
    private String name;
    private InnerObject innerObject;

    public OuterObject(String name, InnerObject innerObject) {
        this.name = name;
        this.innerObject = innerObject;
    }

    public String getName() {
        return name;
    }

    public InnerObject getInnerObject() {
        return innerObject;
    }
}

class InnerObject {
    private String name;

    public InnerObject(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }
}