I assume you are already aware of annotations and generics, which were introduced in Java with J2SE 5.0. JDBC 4.0 introduces annotations and the generic DataSet. This change aims to simplify execution ...
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. Abstract classes and ...
The release of Java SE 15 in Sept 2020 will introduce "sealed classes" (JEP 360) as a preview feature. A sealed class is a class or interface which restricts which other classes or interfaces may ...
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