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icu4j 3.6ã§ã Transliterator tr = Transliterator.getInstance("Halfwidth-Fullwidth"); tr.transliterate(" "); // 空ç½ã®ã¹ãã¼ã¹ #-> "\u3000" ã¨ããªã£ã¦å°ã£ãã\u3000㯠6æåã®æååã§ãããã¨ã¹ã±ã¼ã表ç¾ã§ã¯ãªãããããã確èªãã¦ã¿ãããããâ¦