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.
The only reason Scanner isn't efficient is because keyboards are slow. Scanner itself is very efficient and versatile, once you have found out about 1\n being parsed as integer 1 followed by an empty line. Scanner is a far better way to read from the keyboard than the old Reader method.