如何在父类的数组中访问子类的属性

class Parent {
    // 父类属性和方法
}

class Child extends Parent {
    private String childProperty;

    public String getChildProperty() {
        return childProperty;
    }
}

public class Main {
    public static void main(String[] args) {
        Parent[] parentArray = new Parent[2];
        parentArray[0] = new Child();
        parentArray[1] = new Child();

        for (Parent parent : parentArray) {
            if (parent instanceof Child) {
                Child child = (Child) parent;
                String childProperty = child.getChildProperty();
                // 访问子类的属性
                System.out.println(childProperty);
            }
        }
    }
}