Overview of the RPG IV Programming Language

This chapter presents a high-level review of the features of the RPG IV programming language that distinguish RPG from other programming languages. You should be familiar and comfortable with all of these features before you program in the RPG IV language. The features discussed here encompass the following subjects:

Coding specifications
The program cycle
Indicators
Operation codes

For more information on RPG IV, see the IBM® Rational® Development Studio for i: ILE RPG Reference.