This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
No matter whether I switch to use the way the article discuss or the one I try (in Child constructor), it all fails. I think I have problem with the concept, but no idea where I make mistakes. Is the constructor trying to obtain the type in super class (i.e. T in Father.java)?