package edu.berkeley.nlp.lm.util;
import java.util.List;
public class StrUtils
{
public static <T> String join(final List<T> objs) {
return join(objs, " ");
}
public static <T> String join(final List<T> objs, final String delim) {
if (objs == null) return "";
return join(objs, delim, 0, objs.size());
}
public static <T> String join(final List<T> objs, final String delim, final int start, final int end) {
if (objs == null) return "";
final StringBuilder sb = new StringBuilder();
boolean first = true;
for (int i = start; i < end; i++) {
if (!first) sb.append(delim);
sb.append(objs.get(i));
first = false;
}
return sb.toString();
}
public static boolean isEmpty(final String s) {
return s == null || s.equals("");
}
}