Code example for NavigableSet

Methods: pollLast

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  @Override public E pollFirst() { 
    return delegate.pollFirst();
  } 
 
  @Override public E pollLast() { 
    return delegate.pollLast();
  } 
 
  @Override public boolean remove(Object object) {
    return delegate.remove(checkValid(object));
  } 
 
  @Override public boolean removeAll(Collection<?> c) {
    return delegate.removeAll(c);
  } 
 
  @Override public boolean retainAll(Collection<?> c) {
    return delegate.retainAll(c);
  }