How to truncate a string after n number of words?

package org.kodejava.example.lang;

public class GetNumberOfWordsFromString {
    public static void main(String[] args) {
        String text = "The quick brown fox jumps over the lazy dog.";

        String one = truncateAfterWords(1, text);
        System.out.println("1 = " + one);

        String two = truncateAfterWords(2, text);
        System.out.println("2 = " + two);

        String four = truncateAfterWords(4, text);
        System.out.println("4 = " + four);
    }

    /**
     * Truncate a string after n number of words.
     *
     * @param numberOfWords number of words to truncate after.
     * @param longString the long string.
     * @return truncated long string.
     */
    public static String truncateAfterWords(int numberOfWords, String longString)     {
        return longString.replaceAll("^((?:\W*\w+){" +
                numberOfWords + "}).*$", "$1");
    }
}

The result of the snippet:

1 = The
2 = The quick
4 = The quick brown fox

Wayan Saryada

I am a programmer, a runner, an open water diver and currently living in the island of Bali, Indonesia. If you need help on Java programming you can hire me on Fiverr.

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