Code example for NavigableSet

Methods: isEmpty

0
  @Override public E higher(E e) {
    return delegate.higher(checkValid(e));
  } 
 
  @Override public boolean isEmpty() { 
    return delegate.isEmpty();
  } 
 
  @Override public Iterator<E> iterator() {
    return delegate.iterator();
  } 
 
  @Override public E last() { 
    return delegate.last();
  } 
 
  @Override public E lower(E e) {
    return delegate.lower(checkValid(e));
  } 
 
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