ニュース

InfoQ5年

Java 注目の機能：Sealed クラス - InfoQ

2020年9月にリリースされるJava SE 15では、プレビュー機能として「Sealedクラス」（JEP 360）が導入される。Sealedクラスとは、他のクラスや ...
TheServerSide1年

Use sealed classes in Java to control your inheritance

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.
InfoWorld1年

When to use abstract classes vs. interfaces in Java - InfoWorld

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.
TechWell4月

Java Offers Several Preview Features

A preview feature in Java is one that is not yet added permanently even though its design, specification, and implementation are complete. Presently Java has quite a few preview features in the ...