Mastering CodingBat (Java), Vol. 2: Intermediate A is the second book in a series on the Java sequence of problem sets on the website CodingBat.com. It is a competent guide that will help you learn the ropes of fundamental programming concepts. This book contains problem descriptions, hints, solutions, and discussions on all problems of the following categories: Warmup-2, String-2, Array-2, Logic-2, and Map-1. Its 232 pages cover 90 problems with a total of 219 code listings.