To new developers, the use of the keywordsstaticandfinalin Java might seem unintuitive. However, there's a very object-oriented reason why the Java language describes constants this way. Use of the keyword const in Java will trigger a compile error. Keywords const vs. final in Java Thefinal...
In Java, Strings are immutable. An obvious question that is quite prevalent in interviews is “Why Strings are designed as immutable in Java?” James Gosling, the creator of Java,was once asked in an interviewwhen should one use immutables, to which he answers: I would use an immutable wh...
More importantly, we’ll try to understand the reasons for Spring being our framework of choice. Details of Spring and its constituent parts have beenwidely covered in our previous tutorials. Hence we’ll skip the introductory “how” parts and mostly focus on “why”s. 2. Why Use Any Fram...
In a nutshell, generics enable types (classes and interfaces) to be parameters when defining classes, interfaces and methods. 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 ...
can I use StreamWriter to ouput my DataTable or DataSet to a .txt file? Can not access a closed file Can we apply the Css Class to Hidden Field? Can't create a directory Can't create object Word.Application. Server execution failed, ProgID: "Word.Application" Can't get the value...
Learn Java finalize() signature, the purpose of finalization, how can we call finalize() method manually, and why you should not use it.
simple explanation of generics, along with presenting some basic concepts. After taking a look at the basic concepts, we will dive into some scenarios demonstrating the use of generics. Lastly, we will see how generics are an important ingredient for some constructs that are new to Java SE 8...
We are experiencing aStackOverflowErrorduring some kind of serialization the JBoss EAP is performing. The stacktrace is filled up with: Raw java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1189) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutpu...
Me: "Ok, put the book in the box. Is there something else?" Sofia: "No, nothing else" Me: "Fine, we are done" This is exactly what we do everyday with our Java collections, but unfortunately the biggest part of us is not 2 years old. We iterate the collection externally, explici...
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