note

Static Variable（静的変数）とStatic Subroutine（静的メソッド）

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。これを使うと、複数のオブジェクト ...
TheServerSide

Why we use static final in Java for constants

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 ...
InfoWorld

Java 101: Object-oriented language basics, Part 6: Interfaces and multiple inheritance

Java’s interface language feature confuses many Java newbies. Many mistakenly assume that interfaces only sidestep Java’s failure to support multiple implementation inheritance. In reality, that ...