Object-Oriented Concepts for JVM COBOL

Attributes, Custom Attributes

Delegates and Events
The delegate system is the object-oriented equivalent of the procedure pointer and is a type safe solution. The use of procedure or function pointers is a common enough occurrence in many languages, and in .NET they are generally used as a mechanism for one software component to notify another about an event which has occurred. Delegates and events are also implemented on the JVM platform.

Enumerations and Enum types

Extension Methods in JVM COBOL

Nested Classes in JVM COBOL
In JVM COBOL, you can define a nested class within another class, following all the methods belonging to the containing class.

Data Types in JVM COBOL

Specifying Type Names

Simplified Class Layout