53 lines
1019 B
Java
53 lines
1019 B
Java
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package net.sourceforge.tuned;
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import static java.util.Arrays.*;
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import java.util.Iterator;
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public final class StringUtilities {
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public static boolean isEmptyValue(Object object) {
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return object == null || object.toString().length() == 0;
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}
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public static String joinBy(CharSequence delimiter, Object... values) {
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return join(asList(values), delimiter);
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}
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public static String join(Object[] values, CharSequence delimiter) {
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return join(asList(values), delimiter);
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}
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public static String join(Iterable<?> values, CharSequence delimiter) {
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StringBuilder sb = new StringBuilder();
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for (Iterator<?> iterator = values.iterator(); iterator.hasNext();) {
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Object value = iterator.next();
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if (!isEmptyValue(value)) {
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if (sb.length() > 0) {
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sb.append(delimiter);
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}
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sb.append(value);
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}
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}
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return sb.toString();
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}
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/**
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* Dummy constructor to prevent instantiation.
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*/
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private StringUtilities() {
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throw new UnsupportedOperationException();
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}
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}
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