How to split Japanese text?

Question

What is the best way of splitting Japanese text using Java? For Example, for the below text:

こんにちは。私の名前はオバマです。私はアメリカに行く。

I need the following output:

こんにちは
私の名前はオバマです
私はアメリカに行く

Is it possible using Kuromoji?

score 4 · Accepted Answer · answered Sep 04 '18 at 00:47

You can use java.text.BreakIterator.

String TEXT = "こんにちは。私の名前はオバマです。私はアメリカに行く。";
BreakIterator boundary = BreakIterator.getSentenceInstance(Locale.JAPAN);
boundary.setText(TEXT);
int start = boundary.first();
for (int end = boundary.next();
     end != BreakIterator.DONE;
     start = end, end = boundary.next()) {
     System.out.println(TEXT.substring(start, end));
}

The output of this program is:

こんにちは。
私の名前はオバマです。
私はアメリカに行く。

You cannot use Kuromoji to look for Japanese sentence boundaries. It can split a sentence into words.

To fit his desired out, you should also use strip() on the 。's. — Matthew, Sep 04 '18 at 00:50
This solution is not working for text "速い茶色のキツネは怠惰な犬を飛び越えます" — antnewbee, Oct 08 '20 at 08:40

How to split Japanese text?

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