In a previous Java 101 tutorial, you learned how to better organize your code by declaring reference types (also known as classes and interfaces) as members of other reference types and blocks. I also ...

In Java, a package is a namespace that organizes a set of related classes and interfaces. Conceptually, you can think of a package as a folder in a file system that contains Java files. Packages help ...

abstract keyword is used to implement the abstraction in java. A method which doesn’t have method definition must be declared as abstract and the class containing it must be declared as abstract. You ...

Canonical has announced that OpenJDK 11 has replaced OpenJDK 10 as the default Java package in Ubuntu 18.04 LTS. Canonical recently released Ubuntu 19.04 which also uses OpenJDK 11 as default, the ...