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;}}