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
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