The Jakarta Persistence API (JPA) is a Java specification that bridges the gap between relational databases and object-oriented programming. This two-part tutorial introduces JPA and explains how ...

To demonstrate how to format a table with Java printf statements, let’s create a chart that displays information about Java’s 8 primitive types.. Above is how the finished printf table will look when ...

If you’re curious to know what’s wrong with the current JMM, Doug Lea points to “Java memory model examples: Good, bad, and ugly” (Aspinall and Ševčík, 2007).