Object-oriented programming gives us modifiers, which control the visibility of members and methods. In some languages, like Java, we have modifiers such as private and public.

Although Java lacks a true sizeof () equivalent, the Instrumentation interface introduced with J2SE5 can be used to get an estimate of the size of a particular object via its getObjectSize (Object ...

It contains no explicitly defined Java constructors. When no explicitly defined constructors exist, Java's virtual machine makes object creation possible by providing a default constructor to ...