When a Java program is executed ... If a class is loaded by two different class loaders, the JVM will treat them as separate classes, and objects created from them will not be interchangeable.

Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

JEP 458, Launch Multi-File Source-Code Programs ... suppose a directory contains two files, Prog.java and Helper.java, where each file declares a single class: // Prog.java class Prog { public ...