Titlebook: COBOL; An Introduction Tony Royce Textbook 1991Latest edition A. P. Royce 1991 design.development.language.programming.testing

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The Data Division,Each item of data that your program is going to use must be described and named — thus setting aside data storage space in Central Memory; this is done in one of the sections of the Data Division (e.g. the Working-Storage Section).

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Nuance

The Procedure Division,The program . are written in the Procedure Division — organised in a similar way to a book or a report written in English.

Collision

Introduction to Program Design,When writing a report or an essay, it is helpful to make a plan — listing headings or main topics that you wish to include. In the same way, before writing a program it is useful to make a list of the main tasks that will make up your program — these tasks will probably correspond to Sections or Paragraphs of your Procedure Division.

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可用

現(xiàn)暈光

Using Signed Numbers,If a numeric data-item can be negative — it must be described in the DATA DIVISION as . — otherwise the computer will assume it is always positive.

Dealing

做作

Using ROUNDED,Generally, if the answer to a calculation cannot be accurately stored in the field set aside for it, then it will be truncated.

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