book

Beginning COBOL for Programmers

by Michael Coughlan

March 2014

Intermediate to advanced

588 pages

15h 43m

English

Apress

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What Is COBOL?History of COBOLThe Argument for COBOL (Why COBOL?)SummaryReferences
COBOL IdiosyncrasiesCOBOL Syntax MetalanguageStructure of COBOL ProgramsThe Four DivisionsCOBOL Coding RulesExample ProgramsWhere to Get a COBOL CompilerSummaryReferences

Categories of Program DataDeclaring Elementary Data ItemsAssignment in COBOLStructured DataSummary
Input and Output with ACCEPT and DISPLAYArithmetic in COBOLLet’s Write a ProgramSummary
SelectionIF StatementCondition TypesImplied SubjectsNested IFsDelimiting Scope: END-IF vs. PeriodCondition NamesEVALUATESummaryReferences
Paragraphs RevisitedThe PERFORM VerbPERFORM..TIMESPERFORM..UNTILPERFORM..VARYINGSummaryReferences
What Is a File?Processing Sequential FilesSummary
Files with Multiple Record TypesPrinter Sequential FilesVariable-Length RecordsSummary
Edited PicturesFormatting OutputTypes of EditingEditing SymbolsInsertion EditingSuppression-and-Replacement EditingExample Print LinesPICTURE String RestrictionsThe PICTURE Clause Scaling SymbolSummary
File Organization vs. Method of AccessSequential OrganizationControl-Break ProcessingUpdating Sequential FilesThe Full File Update ProblemSummary
Tables vs. ArraysDeclaring TablesWhy Use Tabular Data?Multidimensional TablesPrefilled TablesANS 85 Table ChangesSummary
The Redefines ClauseThe REDEFINES ClauseThe RENAMES ClauseThe USAGE ClauseDecimal ArithmeticSummaryReferences
SEARCHING Tabular DataSearching Using SEARCH and SEARCH ALLThe SEARCH VerbThe SEARCH ALL VerbVariable-Length TablesSummary
SORTINGMerging FilesSummary
The INSPECT VerbString ConcatenationString SplittingReference ModificationIntrinsic FunctionsSummary
Subprograms and the COPY VerbThe CALL VerbThe COPY VerbSummary
Direct Access vs.Sequential FilesOrganization of Relative FilesProcessing Relative FilesRelative Files: Syntax and SemanticsOrganization of Indexed FilesProcessing Indexed FilesIndexed Files: Syntax and SemanticsComparison of COBOL File OrganizationsSummaryIntroduction
Report WriterDeclarativesSummaryIntroductionFile DescriptionsPrint Specification
Module Strength and Module CouplingInformational-Strength Modules in COBOLOO-COBOLA Formal Introduction to OO-COBOLSummary

Content preview from Beginning COBOL for Programmers

About the Author

Michael Coughlan is a lecturer in the Department of Computer Science and Information Systems at the University of Limerick, Ireland where he teaches e-business, legacy systems, and business oriented programming languages. He has been responsible for teaching COBOL to University of Limerick students since 1980.

Michael wrote the COBOL quick reference for the book Year 2000 in a Nutshell by Norman Shakespeare (O’Reilly, 1998), and he created the free online learning resource for COBOL at www.csis.ul.ie/COBOL. This resource is used by students and instructors all over the world, and notes from the website have been translated into ...

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ISBN: 9781430262534Purchase book

Beginning COBOL for Programmers

by Michael Coughlan

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Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,and much more.

You might also like

Ultimate Go Programming, Second Edition

C++20 for Programmers: An Objects-Natural Approach, 3rd Edition

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Head First Java, 3rd Edition

Publisher Resources

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.