<p>I also <strong>highly</strong> recommend the problems posted on Project Euler to help you master Java and VB. The point of Project Euler is to learn programming and math through inductive chain learning, in which the skills you learn and use in one problem carry over to the next.</p>
<p>As per the website (projecteuler.net): "Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems.</p>
<p>The motivation for starting Project Euler, and its continuation, is to provide a platform for the inquiring mind to delve into unfamiliar areas and learn new concepts in a fun and recreational context."</p>
<p>Here’s a sample problem (the first problem):
"If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.</p>
<p>Find the sum of all the multiples of 3 or 5 below 1000."</p>
<p>Good luck!</p>