Virtual machines

We all know that Java uses a „virtual machine“ that is it simulates a non-existing hardware which is the same independent of the real hardware, thus helping to achieve the well known platform independence of Java. Btw. this is not about virtualization like VMWare, VirtualBox, Qemu, Xen, Docker and similar tools, but about byte code […]

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Primitives, Objects and Autoboxing

The type system in Java makes a difference between so called „primitives“, which are boolean, byte, char, int, long, float and double and Objects, which are anything derived from Object in object oriented philosophy, including the special case of arrays, which I will not discuss today. Primitive types have many operations that are kind of […]

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