How many writing systems does Japanese language have?
One - kanji
Two - kanji, watashi
Three - kanji, hiragana, katakana
Four - kanji, hiragana, katakana, rōmaji
The modern Japanese writing system is a combination of three character types: logographic kanji, which are adopted Chinese characters, and syllabic katakana and hirigana. There is also a romanization system called rōmaji, mostly used in materials for foreigners.