Use Java's packages and static imports to organize top-level types and simplify access to their static members.

1. Static Variable（静的変数） 定義: クラスに属する変数で、インスタンス化（オブジェクトを生成）せずにアクセスできる変数です。 すべてのインスタンスがその同じ変数を共有します。 簡単に言うと、静的変数はクラス全体で1つだけ存在する変数です。

Ever wonder why Java's const keyword is unimplemented? More specifically, why do we mark global constants in Java with both the static and final keywords? Why are Java constants static and final? The ...

Java’s main function Java’s main method is composed of six terms — three reserved words, the main method name, a reference type and a variable name: public – Java’s main function requires a public ...

Static initialization block-sibthe static members of the class are stored inside the class memory space in heap. the static members can be accessed directly with the class name there is no need to ...

Method and variable handles vs. Java reflection To truly understand MethodHandles and VarHandles —what they do and why they are useful—it’s helpful to know a few things about reflection in Java.

If Static method is called before the use of static variable from instance method, the error is not reported, because it's priority is medium and not high. This was observed in a real project, where ...