Nested classes are classes that are declared as members of other classes or scopes. Nesting classes is one way to better organize your code. For example, say you have a non-nested class (also known as ...

前回（第3回 静的モデル：クラスにおけるUMLとJavaのマッピング（1））は、UMLの“クラス”とJavaの“クラス”についてそれぞれを構成する部品をメタモデルという形で明確化しました。今回は、このメタモデルを比較することによって、UMLとJavaのマッピング ...

Every EJB application server allows you to install an EJB if you provide a bean implementation, remote interface, and a home interface but, in most cases, you have to write them yourself. That is ...

The IntNode class represents a node in a singly linked list. It contains methods to get and set the value of the node, as well as to get and set the reference to the next node. The IntList class ...

The final keyword is useful when you want a variable to always store the same value, like PI (3.14159...). The final keyword is called a "modifier". You will learn more about these in the Java ...

This is part three of our series on the latest Java features, and the new rules available in SonarQube to help check for the proper usage of Class-file new API and Stream gatherers, ensuring your code ...

Naming conventions are important if you're a Java developer. Naming conventions not only make your Java code easier to read, they make your code self-documenting as well. Fellow developers can tell in ...