Java Grid, why do we need it!John Davies
More specifically, why do we mark global constants in Java with both thestaticandfinalkeywords? Why are Java constants static and final? The reason why global constants in Java use thestaticandfinalkeywords is becausefinalensures a variable cannot change, whilestaticensures only one copy of the c...
Another key aspect of Spring’s popularity is its highly modular nature. We’ve options to use the entire Spring framework or just the modules necessary. Moreover, we canoptionally include one or more Spring projectsdepending upon the need. What’s more, we’ve got the option to use other ...
If you have to read an XML file using a DOM Parser, we need to deal with some checked exceptions[5] like ParserConfigurationException, SAXException and IOException . The API developer thought that if the XML was invalid, they should notify so that the consumer of the API(ie, the applicatio...
Another day, another requirement: this time they need to sum the numbers in the list again but only if they are greater than 3. So what could we do? Well, we could again copy and paste the former method and just change that boolean condition ... but it feels so dirty, isn't it?
Why Do We Need Composition in Java? While using inheritance for the representation of 2 entities, we can see, only IS-A relation can exist. But in case two entities contain has-a relation between, then aggregation is required. Aggregation is 2 different types: ...
In earlier Java versions, we ran into this when an anonymous inner class captured a variable local to the method that surrounded it – we needed to add thefinalkeyword before the local variable for the compiler to be happy. As a bit of syntactic sugar, now the compiler can recognize situat...
While the ternary operator can be used to handle certain error conditions, it is generally not recommended for complex error handling or exception handling scenarios. In such cases, using dedicated error handling mechanisms like try-catch blocks or custom error handling functions is more appropriate....
The exception stacktrace gives no info apart from this method calls logs. Is there any way we can find what the JBoss EAP is trying to serialize? Maybe using some option that enables the full stack trace? Environment Java Red Hat JBoss Enterprise Application Platform (EAP) ...
Much like the more familiar formal parameters used in method declarations, type parameters provide a way for you to re-use the same code with different inputs. The difference is that the inputs to formal parameters are values, while the inputs to type parameters are types. Code that uses ...