Java比较对象列表以查找重复项并将其放入新列表中

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

public class DuplicateFinder {
    public static void main(String[] args) {
        List<Object> originalList = new ArrayList<>();
        // 假设原始列表中已经包含了一些对象

        List<Object> duplicateList = new ArrayList<>();

        for (int i = 0; i < originalList.size(); i++) {
            Object currentObject = originalList.get(i);
            boolean isDuplicate = false;

            for (int j = 0; j < duplicateList.size(); j++) {
                Object duplicateObject = duplicateList.get(j);

                // 比较对象是否相同
                if (currentObject.equals(duplicateObject)) {
                    isDuplicate = true;
                    break;
                }
            }

            if (isDuplicate) {
                duplicateList.add(currentObject);
            }
        }

        // 输出重复项列表
        System.out.println("重复项列表：");
        for (Object duplicate : duplicateList) {
            System.out.println(duplicate.toString());
        }
    }
}