Course Description (By Curriculum)
2 hours
Programmers who require more advanced REXX programming skills
Completion of the Programming in REXX I course and knowledge of the fundamentals of REXX programming
After completing this course, the student will be able to identify:
• How to write a structured REXX program, including the BLK_INIT, BLK_CALC, and BLK_SHOW procedures
• How error messages are added
BLKSIZE Calculator as an Example Program
Structure of BLKSIZE EXEC and Parameters
Calculating Variables and Constants
Finished Program
Subroutine BLK_INIT
Validate Input Parameters
Coding the Parameters
Return Codes
How BLKSIZE Is Calculated
Arithmetic Functions
SAY Keyword
Formatting Displays
End/ Return Statement
Setting Up Error Codes
Select an Alternate Action
