JAVA默写单词小程序

编写一个记单词和默写单词两个功能的小程序

package com.lu.word;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;

@Data
@AllArgsConstructor
@NoArgsConstructor
@ToString
public class A {
    private String k;
    private String v;

}

package com.lu.word;


import java.io.FileReader;
import java.io.IOException;
import java.util.*;

public class English {
    //单词计分
    private static int scoring = 0;
    public static void main(String[] args) {

        while (true) {
            System.out.println("1.开始背单词 2.默写单词中文意思 3.退出");
            Scanner scanner = new Scanner(System.in);
            int num = 0;
            while (true) {
                try {
                    num = scanner.nextInt();
                } catch (Exception e) {
                    System.out.println("输入错误，请重新输入");
                    scanner.nextLine(); // 清除错误的输入
                    continue;
                }
                break;
            }
            switch (num) {
                case 1:
                    System.out.println("开始背单词");
                    Properties properties = new Properties();
                    try(FileReader fileReader = new FileReader("resource/work.properties");){
                        properties.load(fileReader);
                        properties.forEach((k,v)->{
                            try {
                                Thread.sleep(2000);
                                System.out.println(k+" : "+v);
                            } catch (InterruptedException e) {
                                throw new RuntimeException(e);
                            }
                        });
                    } catch (IOException e) {
                        throw new RuntimeException(e);
                    }
                    break;
                case 2:
                    Properties properties1 = new Properties();
                    try (FileReader fileReader = new FileReader("resource/work.properties");) {
                        properties1.load(fileReader);
                        System.out.println("开始默写单词中文意思");
                        HashMap<Integer, A> map = new HashMap<>();
                        final int[] a = {1};
                        properties1.forEach((k, v) -> map.put(a[0]++, new A((String) k, (String) v)));
                        //判断生成的随机数是否在这个数组中
                        int[] arr =new int[10];
                        //随机数对象
                        Random random = new Random();
                        //生成一个1到map的长度之间的随机数
                        for (int j = 0; j <10 && j< map.size() ; j++) {
                            int i;
                            //判断生成的随机数是否在这个数组中
                            while (true){
                                i = random.nextInt(1,map.size()+1);
                                //判断生成的随机数是否在这个数组中
                                if (!WordService.contains(arr, i)) {
                                    break;
                                }
                            }
                            for (int k = 0; k < 3; k++) {
                                System.out.println("请输入单词翻译");
                                System.out.println(map.get(i).getK());
                                String next = scanner.next();
                                if (next.equals(map.get(i).getV())) {
                                    scoring += 10;
                                    System.out.println("正确");
                                    break;
                                } else {
                                    System.out.println("错误");
                                }

                            }
                            arr[j] = i;
                        }
                        System.out.println("你的得分是："+scoring);

                    } catch (IOException e) {
                        throw new RuntimeException(e);
                    }
                    break;
                case 3:
                    System.out.println("退出");
                    System.exit(0);
                    break;
                default:
                    System.out.println("输入错误，请重新输入");
                    break;
            }
        }


    }
}

package com.lu.word;

public class WordService {
    /**
     * 判断数组中是否包含某个数字
     * @param arr 数组
     */
    public static boolean contains(int[] arr, int num) {
        for (int j : arr) {
            if (j == num) {
                return true;
            }
        }
        return false;
    }

}

原文地址：https://blog.csdn.net/qq_65095414/article/details/140692848

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