[JAVA]히라가나 카타가나 변환알고리즘

출처 : http://java.akjava.com/library/kanagana

public class Hiragana {
public static final char KATAKANA_SMALL_A=12449;
public static final char KATAKANA_NN=12531;

public static final char HIRAGANA_SMALL_A=12353;
public static final char HIRAGANA_NN=12531;

public static String kanaToGana(String s) {
  StringBuffer sb = new StringBuffer(s);
  for (int i = 0; i < sb.length(); i++) {
      char c = sb.charAt(i);
      if (c >= KATAKANA_SMALL_A && c <= KATAKANA_NN) {
        sb.setCharAt(i, (char)(c - KATAKANA_SMALL_A +HIRAGANA_SMALL_A));
      }
  }
  return sb.toString();  
}

public static String ganaToKana(String s) {
   StringBuffer sb = new StringBuffer(s);
   for (int i = 0; i < sb.length(); i++) {
       char c = sb.charAt(i);
       if (c >= HIRAGANA_SMALL_A && c <= HIRAGANA_NN) {
         sb.setCharAt(i, (char)(c - HIRAGANA_SMALL_A + KATAKANA_SMALL_A));
       }
   }
   return sb.toString();  
 }

public static void main(String[] args){
String kana = "かな";
String gana = "カナ";

// String ret = kanaToGana(gana);
String ret = ganaToKana(kana);

System.out.println(ret);
}
}

위의 알고리즘으로 히라가나, 카타가나 변환이 간단히 됨.