- Introduction to COBOL: What Is COBOL and Why Use It?
- Setting Up Your COBOL Development Environment
- Your First COBOL Program: Hello World
- Understanding COBOL Syntax and Structure
- Variables and Data Types in COBOL
- Declaring and Using Variables in COBOL
- Basic Arithmetic Operations in COBOL
- Input and Output in COBOL: DISPLAY and ACCEPT
- Conditional Statements in COBOL: IF, EVALUATE
- Loops in COBOL: PERFORM and ITERATE
- Defining and Using Procedures in COBOL
- Understanding COBOL Paragraphs and Sections
- Working with COBOL Data Structures: Arrays and Tables
- Introduction to File Handling in COBOL
- Reading and Writing Files in COBOL
- Working with COBOL Data Records
- Understanding and Using Constants in COBOL
- Understanding Data Division and Working-Storage
- Understanding the COBOL Environment Division
- Basic COBOL Debugging Techniques
- Working with Numbers: Packed and Zoned Decimal Formats
- Using String Manipulation Functions in COBOL
- Control Flow: Nested Conditions and Loops
- Creating and Using Subprograms in COBOL
- Using the COBOL COPY and REPLACE Statements
- Understanding COBOL’s Internal and External Data
- Using Arrays (Tables) in COBOL
- Handling Multiple Files in COBOL
- Sorting and Merging Files in COBOL
- Advanced File Handling in COBOL
- Using Indexes and Redefining Data in COBOL
- Performing Validations in COBOL
- Working with Dates and Time in COBOL
- String Manipulation and Searching in COBOL
- Using the INSPECT and UNSTRING Statements in COBOL
- COBOL Report Writing Basics
- Conditional Expressions in COBOL
- COBOL Data Conversion Techniques
- Introduction to COBOL Structured Programming
- Working with COBOL Tables and Multidimensional Arrays
- Understanding COBOL Working Storage Section
- Creating and Using Functions and Procedures in COBOL
- Handling Errors and Exceptions in COBOL
- Using the STRING and NUMVAL Functions in COBOL
- Subprograms and Linkage Sections in COBOL
- Understanding File Organization: Sequential, Indexed, Relative
- COBOL and SQL: Introduction to Embedded SQL
- File Handling with COBOL: Open, Read, Write, and Close
- Debugging COBOL Programs: Tools and Techniques
- Working with COBOL Arrays and Tables Efficiently
- COBOL and External Data Sources (CSV, JSON, XML)
- Unit Testing and Test-Driven Development in COBOL
- Writing and Using COBOL Functions in the PROCEDURE DIVISION
- Creating and Using Dynamic Memory Allocation in COBOL
- Building a Basic Banking System in COBOL
- Error Handling Strategies in COBOL
- COBOL’s BINARY and COMP Data Types
- Understanding COBOL’s Report Writer
- Using COBOL to Process Data Files
- Batch Processing in COBOL
- COBOL String Handling: Substrings, Padding, and Trimming
- Working with Pointers and Memory in COBOL
- Creating Custom COBOL Data Formats
- Mastering COBOL’s EVALUATE Statement
- Working with COBOL’s TIME and DATE Intrinsics
- COBOL and Object-Oriented Programming (OOP) Concepts
- Advanced File Handling in COBOL: Indexed and Relative Files
- Advanced Sorting and Searching Algorithms in COBOL
- COBOL and the OpenCOBOL Compiler
- COBOL and Web Services: Integrating with Modern Applications
- Introduction to COBOL’s Dynamic File Handling Capabilities
- COBOL and Databases: Embedding SQL in COBOL Programs
- Creating a COBOL Web API
- COBOL on Mainframes: Best Practices and Optimization
- COBOL’s String Manipulation Functions in Depth
- COBOL and Cloud Integration: Moving Legacy Systems to the Cloud
- Optimizing COBOL Programs for Speed and Memory Efficiency
- Concurrency in COBOL: Multi-Threading and Parallelism
- COBOL for Real-Time Processing
- Using COBOL for Financial Systems and Risk Management
- COBOL and Integration with Modern UI Technologies
- Advanced Debugging Techniques for Large COBOL Programs
- COBOL with Big Data: Integrating COBOL with Hadoop or Spark
- COBOL’s String Search and Replace Techniques
- Memory Management and Performance Optimization in COBOL
- Implementing Distributed Transactions in COBOL
- Data Integrity and Security in COBOL
- Using COBOL for Complex Financial Calculations
- Building Large-Scale Enterprise Applications with COBOL
- Creating Custom Libraries and APIs in COBOL
- Advanced Error Handling with COBOL
- Refactoring Legacy COBOL Code for Modern Systems
- COBOL Performance Tuning: Profiling and Optimization
- Integrating COBOL with Modern Agile Development Workflows
- Working with JSON and XML in COBOL
- Implementing Complex Data Models in COBOL
- COBOL for Large-Scale Data Migration Projects
- COBOL and Cloud-Native Development: Moving Beyond Legacy Systems
- Handling Multi-User and Multi-Threaded Applications in COBOL
- The Future of COBOL: Maintaining Legacy Systems in a Modern World
These 100 chapters provide a complete roadmap for learning and mastering COBOL, covering essential topics from basic syntax and data handling to advanced features like integration with modern technologies, performance optimization, and cloud computing. Whether you are a beginner or experienced developer, this guide will help you build a strong foundation in COBOL and leverage its power for modern enterprise applications.