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  1. class M{
  2.   static int c(String s){
  3.     String x = " 一二三四五六七八九十百";
  4.     int l = s.length(),
  5.         i = x.indexOf(s.charAt(l-1)),
  6.         j = x.indexOf(s.charAt(0));
  7.     if(l<2) return i; // 1-10
  8.     if(l<3){
  9.       if(i==10) return j*10; // 20,30,40,50,60,70,80,90
  10.       if(i>10) return j*100; // 100,200,300,400,500,600,700,800,900
  11.       return 10+i; // 11-19
  12.     }
  13.     if(l<4) return j*10+i; // 21-29,31-39,41-49,51-59,61-69,71-79,81-89,91-99
  14.     if(l<5) return j*100+i; // 101-109,201-209,301-309,401-409,501-509,601-609,701-709,801-809,901-909
  15.     return j*100+i+x.indexOf(s.charAt(2))*10; // 111-119,121-129,131-139,...,971-979,981-989,991-999
  16.   }
  17.  
  18.   public static void main(String[] a){
  19.     System.out.println(c("一"));
  20.     System.out.println(c("二"));
  21.     System.out.println(c("三"));
  22.     System.out.println(c("四"));
  23.     System.out.println(c("五"));
  24.     System.out.println(c("六"));
  25.     System.out.println(c("七"));
  26.     System.out.println(c("八"));
  27.     System.out.println(c("九"));
  28.     System.out.println(c("十"));
  29.     System.out.println(c("十一"));
  30.     System.out.println(c("二十四"));
  31.     System.out.println(c("八十三"));
  32.     System.out.println(c("九十"));
  33.     System.out.println(c("一百"));
  34.     System.out.println(c("二百三十一"));
  35.     System.out.println(c("八百零三"));
  36.     System.out.println(c("九百九十九"));
  37.   }
  38. }
Success #stdin #stdout 0.05s 711168KB
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https://ideone.com/dgK2Cq
language:
Java (12.0.1)
created:
7 years ago
visibility:
public

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