If you are interested in learning more about class and object initialization at the JVM level, investigate the SDK’s javap program. That program generates a disassembly of Java class files.

In Java, objects are passed by reference ... but at the same time we want to keep the example simple and easy to understand. Our example is quite similar to Robert Martin’s in terms of class structure ...

Then you’ll get started with using instance variables in your Java classes ... Imagine, for example, that you wanted to instruct a Person object to stand up. Without encapsulation, your commands ...

For example, in a payroll system, a class could be Manager ... Today, C++, C#, Java, Visual Basic.NET and Python are popular object-oriented languages. The following compares basic OOP terms ...

as in the following example. String s1 = new String("Hello world!"); That code will create an s1 string object and a reference variable. As noted, Java strings are immutable. Once created, a string ...