这是个啥

简而言之呢就是最近心血来潮打算自学日语，学日语自然就要先从50音图开始，就是下面这个：

可以看出来50音图横向是按照a i u e o这5个元音顺序，纵向按照a ka sa ta na ha ma ya ra wa 的顺序排布的。按顺序编排自然是为了方便记忆，但是也容易按照顺序能背出来，打乱顺序是否还能快速正确的念出来呢？那我可不可以写个小程序，随机给我出题，让我作答呢？
就类似这样：

mo的写法是：
も
すごい，正しい答！！！
く的读音是：
ku
すごい，正しい答！！！

所以就很简单写了一个小程序。由于我有点强迫症，像ya，ma两行不是完整的5个，所以我还是使用空格填充了，让两个数组看起来整齐一点，所以代码里有対空格的判断跳过。还有有些读音应该是si、ti，我写成了shi和chi，这个看大家自己喜欢吧，可以改。

目前支持以下几项功能：
1.支持输入出多少道题
2.可以根据字形，输入读音；也可以根据读音，输入字形
3.题是随机出的
4.回答错误会给出正确答案

后续大家有兴趣的可以迭代以下几个小功能：
1.目前随机是random函数直接随机的，没有加权重判断，可以增加按照已经出过的题答对答错的次数来增加权重因子，完成错题集的能力
2.日语键盘和英文键盘切换有点麻烦，目前出字形题和字音题是随机的，可以考虑先字形再字音，减少键盘切换的频率

直接上代码

package pri.roy.learn;

import java.util.*;

/**
 * @author roy
 */
public class FiftyCharacter {
    private static final List<String> PRONOUNCE_LIST = new ArrayList<>(Arrays.asList(
            "a", "i", "u", "e", "o",
            "ka","ki","ku","ke","ko",
            "sa","shi","su","se","so",
            "ta","chi","tu","te","to",
            "na","ni","nu","ne","no",
            "ha","hi","fu","he","ho",
            "ma","mi","mu","me","mo",
            "ya","  ","yu","  ","yo",
            "ra","ri","ru","re","ro",
            "wa","  ","  ","  ","wo",
            "n"
    ));
    private static final List<String> FONT_LIST = new ArrayList<>(Arrays.asList(
            "あ","い","う","え","お",
            "か","き","く","け","こ",
            "さ","し","す","せ","そ",
            "た","ち","つ","て","と",
            "な","み","ぬ","ね","の",
            "は","ひ","ふ","へ","ほ",
            "ま","み","む","め","も",
            "や","  ","ゆ","  ","よ",
            "ら","り","る","れ","ろ",
            "わ","  ","  ","  ","を",
            "ん"
    ));
    public static void main(String[] args) {
        Random random = new Random();
        Scanner scan = new Scanner(System.in);
        System.out.println("请输入要挑战几道题？");
        int total = scan.nextInt();
        int n;
        for(int i = 0;i < total; i++){
            n = random.nextInt(PRONOUNCE_LIST.size());
            while("  ".equals(FONT_LIST.get(n))){
                n = random.nextInt(PRONOUNCE_LIST.size());
            }
            Boolean flag = random.nextBoolean();
            if(flag){
                System.out.println(i+1 + "." + FONT_LIST.get(n) + "的读音是：");
            }else{
                System.out.println(i+1 + "." + PRONOUNCE_LIST.get(n) + "的写法是：");
            }
            String pronounce = scan.next();
            if (flag){
                if(pronounce.equals(PRONOUNCE_LIST.get(n))){
                    System.out.println("すごい，正しい答！！！");
                }else{
                    System.out.println("回答ミス，正解は：" + PRONOUNCE_LIST.get(n));
                }
            }else{
                if(pronounce.equals(FONT_LIST.get(n))){
                    System.out.println("すごい，正しい答！！！");
                }else{
                    System.out.println("回答ミス，正解は：" + FONT_LIST.get(n));
                }
            }
        }
    }

}

测试效果图

---------------------------------------------------------------------------------我是分割线--------------------------------------------------------------------------
to be a better me, talk is cheap show me the code

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