Introduction to Object-oriented Programming

In this course you will learn how to use the object-oriented capabilities of Progress OpenEdge ABL. First you will be introduced to key features of Progress Software’s object-oriented ABL. Next, you will learn how to develop and test classes. Finally, you will learn how to further develop an application by applying object-oriented programming features such as inheritance, interface classes, singletons, dynamic instances, and events.

This course is available as Instructor-Led Training and online with a subscription to the Progress Education Community.

After taking this course, you should be able to:

• Describe the key features of object-oriented ABL programming.
• Define the parts of an ABL class, including:
  • Data members
  • Constructors
  • Methods
  • A destructor
• Access data members and call methods within a class.
• Work with other classes, including:
  • Creating instances
  • Accessing data members and methods
  • Accessing a class instance dynamically
  • Deleting instances
• Test a class
• Define and use an inheritance hierarchy
• Define and use interface classes
• Create singletons (static instances)
• Create instances dynamically
• Define and use class events

You should already be able to:

• Develop and test ABL procedural code.
• Perform basic tasks in Progress Developer Studio for OpenEdge:
  • Define a workspace
  • Create a project.
  • Use Project Explorer to navigate within the workspace.