In this Java threads primer, Cameron Laird hits some of the high (and low) points of threads as a concurrent programming technique.

Java provides a set of thread-safe collections in the java.util.concurrent package. These collections are designed for concurrent access and can greatly simplify concurrent programming.

Instead, Java 5 offers this support via java.util.concurrent.atomic: a toolkit of classes used for lock-free, thread-safe programming on single variables. According to java.util.concurrent.atomic ...