Moji4J is an open source Java library to converts between Japanese Hiragana, Katakana, and Romaji scripts.
Please add the following Maven dependency to your pom.xml:
<dependency>
<groupId>com.andree-surya</groupId>
<artifactId>moji4j</artifactId>
<version>1.0.0</version>
</dependency>
MojiConverter converter = new MojiConverter();
converter.convertRomajiToHiragana("Hiragana"); // ひらがな
converter.convertRomajiToKatakana("Katakana"); // カタカナ
converter.convertKanaToRomaji("ひらがな"); // hiragana
converter.convertKanaToRomaji("カタカナ"); // katakana
MojiDetector detector = new MojiDetector();
detector.hasKanji("まっ暗"); // true
detector.hasKanji("まっしろ"); // false
detector.hasKana("ウソ付き"); // true
detector.hasKana("東京"); // false
detector.hasRomaji("モデル XYZ"); // true
detector.hasRomaji("フルーツ"); // false
The romanization system adopted by this library is loosely based on the modern Hepburn system, with adjustments for cases that might causes ambiguity during conversion.
| Cases | Romaji | Kana |
|---|---|---|
| Long vowels | sentaa | センター |
| ookayama | おおかやま | |
| o+u vowels | toukyou | とうきょう |
| ousama | おうさま | |
| Long consonants | kekka | けっか |
| kasetto | カセット | |
| kotchi | こっち | |
| Syllabic n | gunma | ぐんま |
| kan'i | かんい | |
| shin'you | しんよう | |
| Particles | he | へ |
| wo | を | |
| Others | dzu | づ |
The romanization tables used in this library are derived from Mojinizer, a Ruby library to converts between Japanese Kana and Romaji. The data is modified to suit differences in algorithm and romanization convention.
© Copyright 2016 Andree Surya
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.