Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are initialized via constructors—but there is still more to initialization.

Java is an object-oriented language, and Java constructors are how you create objects. Learn about object creation in this full Java constructor tutorial.

Java's default constructor lets developers create instances of classes when an explicitly defined constructor does not exist. Here's how it works.

UML is used as a representation of the Java programming language. Using sample class and sequence diagrams, you can see how UML conveys unambiguous code-mapping information to developers.