Most Java developers who come from a C/C++ background have probably at one time wished for a Java equivalent of sizeof(). Although Java lacks a true sizeof() equivalent, the Instrumentation interface ...

Java developers have spent decades working with a basic assumption about objects: every object has its own identity. Now, OpenJDK developers are preparing to loosen that rule with JDK 28.

Q: Does Java have an operator like sizeof() in C? A: A superficial answer is that Java does not provide anything like C’s sizeof(). However, let’s consider why a Java programmer might occasionally ...