[Java Silver SE 17] Organizing the differences between classes and instances | A story about stumbling over reference variables

While studying for the Java Silver exam, I learned about "classes and instances" this time.Since this content also appeared ...
GlobalSpec

Chapter 5: Objects and Classes

C# is a modern object-oriented programming language (OOPL) just like Java. This means that it upholds the three pillars of object-oriented programming encapsulation, inheritance, and polymorphism.
InfoWorld

Class and object initialization in Java

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...