public LinkedHashSet(Collection<? extends E> c){
  super(Math.max(2 * c.size(),11),.75f,true);
  addAll(c);
}

public LinkedHashSet ( Collection < ? extends E > c ) { super ( Math . max ( 2 * c . size ( ) , 11 ) , .75f , true ) ; addAll ( c ) ; }
constructs a new linked hash set with the same elements as the specified collection . the linked hash set is created with an initial capacity sufficient to hold the elements in the specified collection and the default load factor ( 0 . 75 ) .
