Java 比较两个list中元素的属性是否相同

在Java中，比较两个list中元素的属性是否相同，可以使用以下代码：

public static <T> boolean compareLists(List<T> list1, List<T> list2, String property) throws NoSuchFieldException, IllegalAccessException {
    if (list1.size() != list2.size()) {
        return false;
    }
    for (int i = 0; i < list1.size(); i++) {
        T obj1 = list1.get(i);
        T obj2 = list2.get(i);
        Field field = obj1.getClass().getDeclaredField(property);
        field.setAccessible(true);
        Object value1 = field.get(obj1);
        Object value2 = field.get(obj2);
        if (!Objects.equals(value1, value2)) {
            return false;
        }
    }
    return true;
}

// 示例代码
public static void main(String[] args) throws NoSuchFieldException, IllegalAccessException {
    List<Fruit> list1 = new ArrayList<>();
    list1.add(new Fruit("apple", 1.5));
    list1.add(new Fruit("banana", 2.0));
    list1.add(new Fruit("orange", 1.2));

    List<Fruit> list2 = new ArrayList<>();
    list2.add(new Fruit("apple", 1.5));
    list2.add(new Fruit("banana", 2.0));
    list2.add(new Fruit("orange", 1.2));

    boolean result1 = compareLists(list1, list2, "name");
    System.out.println(result1); // true

    List<Fruit> list3 = new ArrayList<>();
    list3.add(new Fruit("apple", 1.5));
    list3.add(new Fruit("kiwi", 1.8));
    list3.add(new Fruit("orange", 1.2));

    boolean result2 = compareLists(list1, list3, "name");
    System.out.println(result2); // false
}

// 示例类
public class Fruit {
    private String name;
    private double weight;

    public Fruit(String name, double weight) {
        this.name = name;
        this.weight = weight;
    }

    public String getName() {
        return name;
    }

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

    public double getWeight() {
        return weight;
    }

    public void setWeight(double weight) {
        this.weight = weight;
    }
}

这段代码会先判断两个list的长度是否相等，如果不相等，则直接返回false。如果长度相等，则遍历这两个list中的所有元素，根据传入的property属性来比较它们是否相等。在Java中，我们需要使用反射来获取对象的属性值，因此代码稍微有些复杂。如果两个属性值相等，则返回true，否则返回false。