Most new Java developers quickly learn that they should generally compare Java Strings using String.equals(Object) rather than using == . This is emphasized and reinforced to new developers ...

I have been using Java enums to represent finite values and to provide basic methods on the enum values for some time.

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 ...