Java将链表与另一个文件进行比较并删除重复条目

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.LinkedList;

public class LinkedListFileComparison {
    public static void main(String[] args) {
        LinkedList<String> linkedList = new LinkedList<>();

        // 读取文件数据到链表
        try (BufferedReader reader = new BufferedReader(new FileReader("file.txt"))) {
            String line;
            while ((line = reader.readLine()) != null) {
                linkedList.add(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        // 比较和删除重复条目
        for (int i = 0; i < linkedList.size(); i++) {
            for (int j = i + 1; j < linkedList.size(); j++) {
                if (linkedList.get(i).equals(linkedList.get(j))) {
                    linkedList.remove(j);
                    j--;
                }
            }
        }

        // 将更新后的链表数据写入文件
        try (BufferedWriter writer = new BufferedWriter(new FileWriter("file.txt"))) {
            for (String item : linkedList) {
                writer.write(item);
                writer.newLine();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}