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Library containing string utilites

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package uk.co.mruoc.string;

public class StringUtils {

    private StringUtils() {
        // utility class
    }

    public static String extractLastNChars(String value, int n) {
        int length = value.length();
        if (length < n) {
            return value;
        }
        return value.substring(length - n);
    }

}