In instantiating the ImmutableString, the function pointers to the get and length methods actually refer to the String.get and String.length method, by going through the base variable which is an internally stored String object. The use of a function pointer can achieve inheritance of a method from a superclass.
Most women will start to show at some point between weeks 12 and 24 of pregnancy, with most reporting that they began to show during the first half of their second trimester, between 12 and 18 weeks.
Ectopic pregnancy - Symptoms. Symptoms of ectopic pregnancy. Symptoms of an ectopic pregnancy usually develop between the 4th and 12th weeks of pregnancy. Some women don't have any symptoms at first. They may not find out they have an ectopic pregnancy until an early scan shows the problem or they develop more serious symptoms later on.