Java实现英语作文单词扫盲程序

package Demo;
import java.util.ArrayList;
import java.util.Random;
import java.util.Scanner;

public class random_words {
    public static void main(String[] args) {
        //导入英语作文数据
        String data = "***英语文章数据abcdefg***";
        ArrayList<String> list = new ArrayList<>();//存储所有长度大于3的单词
        ArrayList<String> doneList = new ArrayList<>();//存储已出现的单词
        Random r = new Random();
        Scanner sc = new Scanner(System.in);
        // 按空格和标点符号分割字符串
        String[] words = data.split("[\\p{Punct}\\s+]");
        // 长度大于3的单词并加入列表
        for (String word : words){
            if (word.length()>3 && !word.isEmpty()) { //长度大于3 且 不为空
                list.add(word);
            }
        }
        //生成5个不重复的单词
        boolean choose = true;//控制循环
        while(choose && list.size()>doneList.size()){
            ArrayList<String> nowList= new ArrayList<>();//用于存储生成的5个单词
            while (nowList.size()<5 && list.size()> doneList.size()){
                int n = r.nextInt(list.size());
                String randomWords = list.get(n);
                //检查该组单词是否重复
                if (!nowList.contains(randomWords) && !doneList.contains(randomWords)) {
                    nowList.add(randomWords);
                    doneList.add(randomWords);
                }
            }
            //输出生成的单词
            System.out.println("请复习：");
            for (String word:nowList) {
                System.out.println(word);
            }
            //检查剩余单词数量是否不足5个
            if (doneList.size()< list.size()) {
                System.out.println("是否继续复习（y/n）");
                String userChick = sc.nextLine();
                if (!userChick.equalsIgnoreCase("y")) {
                    choose = false;
                }
            }else{
                for (String word:list) {
                    if (!doneList.contains(word)) {
                        System.out.println(word);
                    }
                }
                break;
            }
        }
        System.out.println("当前单词已复习完，请换下一篇");
        sc.close();
    }
}

ArrayList<String> list = new ArrayList<>();//存储所有长度大于3的单词

while(choose && list.size()>doneList.size()){
            ArrayList<String> nowList= new ArrayList<>();//用于存储生成的5个单词
            while (nowList.size()<5 && list.size()> doneList.size()){
                int n = r.nextInt(list.size());
                String randomWords = list.get(n);

ArrayList<String> doneList = new ArrayList<>();//存储已出现的单词
ArrayList<String> nowList= new ArrayList<>();//用于存储生成的5个单词

if (!nowList.contains(randomWords) && !doneList.contains(randomWords)) {
                    nowList.add(randomWords);
                    doneList.add(randomWords);
                }

if (doneList.size()< list.size()) {
                System.out.println("是否继续复习（y/n）");
                String userChick = sc.nextLine();
                if (!userChick.equalsIgnoreCase("y")) {
                    choose = false;
                }
            }else{
                for (String word:list) {
                    if (!doneList.contains(word)) {
                        System.out.println(word);
                    }
                }
                break;
            }