We discuss some of the most common design ... Pattern restricts the instantiation of a Class and ensures that only one instance of the class exists in the Java Virtual Machine (JVM). The ...

Community driven content discussing all aspects of software development from DevOps to design patterns. The implementation of Java 8 ... To show you an old school, pre-Java 8 UnaryOperator example, we ...

EJB Design Patterns goes beyond high-level design pattern descriptions into critical EJB-specific implementation issues ... JUnit testing strategies, using Java Data Objects (JDO) as an alternative to ...