Hello all I am using Ivor Hortons beginning java 7th addition and I am having a hec of a time understanding the the bit wise operators, casting, op operators use,shift operators, just the whole math section of chapter two past the basic math operators. Can anyone recommend some supplemental material so that i can understand these functions much better. He explains the functions gives examples and try out code that should put it together but I'm having trouble putting it together. At the end of chapter 2 there are four exercises and I believe I can only do 1. I really want to get my associates certs by oct. so I'm using Ivor's book to get a foundation and then start doing core java vol one and two for the rest, and then the study guide for the cert test. I would like to have my professionals certs by the end of the year but I must first make it through this part, s.os from a determined but struggling green horn thanks .