@Test void tesIsKatakanaWithHyphen() { assertTrue(StringUtils.isKatakana('ー')); }
public static boolean isKatakana(char c) { return Character.UnicodeBlock.of(c) == KATAKANA; }
StringUtils { public static boolean isKatakana(char c) { return Character.UnicodeBlock.of(c) == KATAKANA; } }
StringUtils { public static boolean isKatakana(char c) { return Character.UnicodeBlock.of(c) == KATAKANA; }  }
StringUtils { public static boolean isKatakana(char c) { return Character.UnicodeBlock.of(c) == KATAKANA; }  static boolean isKatakana(char c); static boolean isHiragana(char c); static boolean isCJK(char c); static boolean isProbablyJapanese(char c); static boolean isBasicLatin(char c); static boolean isCyrillic(char c); static boolean isKorean(char c); }
StringUtils { public static boolean isKatakana(char c) { return Character.UnicodeBlock.of(c) == KATAKANA; }  static boolean isKatakana(char c); static boolean isHiragana(char c); static boolean isCJK(char c); static boolean isProbablyJapanese(char c); static boolean isBasicLatin(char c); static boolean isCyrillic(char c); static boolean isKorean(char c);  }