2015
Lynda
Peggy Fisher
3:04
English
COBOL is an endangered language. But it once ran 80% of the world's business systems: thousands of mission-critical applications that still exist today. Some companies want to upgrade and transition their COBOL applications to more modern frameworks; others want to stick with COBOL's relatively stable platform. In either case, hiring managers are willing to pay a premium for candidates who know how to take on COBOL's challenges. For this reason, programmers are learning COBOL again.
This course is designed to help new and experienced programmers alike add COBOL (or add COBOL back) to their skill set. Peggy Fisher shows how to get a COBOL development environment up and running and how to start programming. She reviews COBOL's data types and constants, control structures, file storage and processing methods, tables, and strings. Challenges issued along the way will help you practice what you've learned.
Introduction
Welcome
What you should know before watching this course
Using the exercise files
Challenges explained
1. Getting Started
Introduction to COBOL
Downloading GnuCOBOL
Downloading and installing Cygwin
Unzipping and installing GnuCOBOL
Walking through a sample program
COBOL coding rules
Designing programs
Editing, compiling, linking, and running COBOL programs
2. Describing Data
COBOL naming standards
Data types and description
Literal and figurative constants
Challenge: Using the constant PI
Solution: Find the area of a circle
3. Control Structures
How to use COBOL verbs
Computational verbs
Decision making in COBOL
Branching in COBOL (go to)
Perform/Perform...thru
Perform n times
Perform...until
Challenge: Simulate a cash register
Solution: Implement a cash register
4. Sequential Files
File organization and access methods
Reading sequential files in COBOL
File error checking in COBOL
Processing files in COBOL
Writing records to a sequential file
Challenge: Calculate employee raises
Solution: Update employee salaries
5. Advance Sequential Files
Inserting records in a master data file
Updating records in a master file
Sorting records in COBOL
Merging records in COBOL
Challenge: Merge two employee files
Solution: Create a master employee file
6. Direct Access Files
Direct access files in COBOL
Relative files in COBOL
7. Tables in COBOL
Using tables in COBOL
Creating tables in COBOL
Searching tables in COBOL
Challenge: Create table of weather data
Solution: Search table of weather data
8. String Handling
Inspecting strings in COBOL
Using the string command in COBOL
Using the unstring command in COBOL
Challenge: Create mailing labels
Solution: Parse CSV file for mailing labels
Conclusion
Next steps
Download File Size:462.88 MB
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