package net.sourceforge.tuned; import java.util.Iterator; public final class StringUtilities { public static String join(Object[] values, CharSequence delimiter) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < values.length; i++) { sb.append(values[i]); if (i < values.length - 1) { sb.append(delimiter); } } return sb.toString(); } public static String join(Iterable values, CharSequence separator) { StringBuilder sb = new StringBuilder(); for (Iterator iterator = values.iterator(); iterator.hasNext();) { sb.append(iterator.next()); if (iterator.hasNext()) { sb.append(separator); } } return sb.toString(); } public static boolean isNullOrEmpty(String value) { return value == null || value.isEmpty(); } /** * Dummy constructor to prevent instantiation. */ private StringUtilities() { throw new UnsupportedOperationException(); } }