This week's book giveaway is in the Reactive Progamming forum.
We're giving away four copies of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams and have Adam Davis on-line!
See this thread for details.
Win a copy of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams this week in the Reactive Progamming forum!
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Assignment Java-6 (Grains)
Purpose:  To learn the boundaries of int and long (accuracy), to become more familiar
with the java libraries.


 

There once was a wise servant who saved the life of a princess. The king promised to
 pay whatever the servant could dream up. Knowing that the king loved chess, the servant
 told the king he would like to have grains of wheat. One grain on the first square of a
 chess board. Two grains on the next. Four on the third, and so on.


 

There are 64 squares on a chessboard.


 

Write a program that shows how many grains were on each square and the total number of
 grains.


 

In other words, I want to type


 
 

and see


 
 

etc.


 

To complete this assignment, you will need to find a class in the Java standard library
 that you have not used yet. The search for this class is the real meat of this assignment!


 

Java API documentation


 

Instructor's solution:


 
    35 lines


After you have tied up this assignment, lasso the next one:
 Assignment Java-7 (Sum)








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If we don't do the shopping, we won't have anything for dinner. And I've invited this tiny ad:
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop
https://coderanch.com/wiki/718759/books/Building-World-Backyard-Paul-Wheaton
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