Community driven content discussing all aspects of software development from DevOps to design patterns. The Java enum, introduced in Java 5, will map to the underlying database without any ...

at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline ...

Exception in thread "pool-10-thread-3" java.lang.Error: java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Can't get the number of an unknown enum value.

Enumeration is used to retrieve or traverse all the elements of particular collection of objects. Its not considered for collections but we can use it for legacy like Vectors. To use it we need to ...

Although it is part of the java.util.concurrent package, the TimeUnit enum is useful in many contexts outside of concurrency. In this post, I look at how the TimeUnit enum can be used even in code ...

So I'm working on a project that involves the use of a TWAIN-compliant camera to take photos for badges.<BR><BR>Since the Java Media Framework (JMF) didn't work for the client's particular camera my ...

Let’s imagine a situation where we want to write a pure Java application that must download files from a remote computer running an FTP server. We also want to filter downloads on the basis of remote ...

The Java Management Extensions (JMX) standard is gaining adoption within the J2EE community for the management of applications, as well as application servers and other infrastructure software. JMX ...