Although it is part of the java.util.concurrent package, the TimeUnit enum is useful in many contexts outside of concurrency .

Java developers have a choice for iterating collection of objects. Here's why the Java Iterator vs. Enumeration debate is all about the Iterator.

JPA and Hibernate enum mapping The Java enum, introduced in Java 5, will map to the underlying database without any intervention. The JPA framework, be it Hibernate or Toplink or DataNucleus, will ...