public static <T> void filter(Collection<T> target, IPredicate<T> predicate) {
Iterator<T> iter = target.iterator();
while (iter.hasNext()) {
T element = iter.next();
if (!predicate.apply(element)) {
iter.remove();
}
}
}
public static <TSource> TSource FirstOrDefault(
Iterable<TSource> source, IPredicate<TSource> predicate) {
for (TSource item : source) {
if (predicate.Match(item)) {
return item;
}
}
return null;
}
public static <TSource> Iterable<TSource> Where(
Iterable<TSource> source, IPredicate<TSource> predicate) {
ArrayList<TSource> list = new ArrayList<TSource>();
for (TSource item : source) {
if (predicate.Match(item)) {
list.add(item);
}
}
return list;
}