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Rules for constructing an Arithmetic Expression:
The rules for constructing an arithmetic expression are as shown below:
(i) When an arithmetic expression specifies a calculation, it may consist of two or more numeric literals and/or data names joined by the arithmetic operators. The following table lists some of the operations and their meaning.
There should be at least one space preceding and the operator in an arithmetic expression is as shown below. No two arithmetic operators can appear altogether in an expression. In this respect the ** is considered as a single operator.
(i) Parentheses may be used to indicate the order of the operations in an arithmetic expression. Where the parentheses are absent, then the order is taken to be left to right as shown:
Whenever the parentheses are used, the part of the expression enclosed within the parentheses is computed first.
PROCEDURE DIVISION statements for the indexed files: All the statements which are available for a relative file are also available for an indexed file. READ STTATEMENT :
FILLER CLAUSE: Consider the statements as shown below: 1) 01 f pic x(80) value all "-". This statement origins a line of 80 characters filled with "-"
WRITE STATEMENT: The WRITE Statement verb releases a record in an output file. The syntax for the WRITE statement can be unlike depending on the output device and the medium us
Second form of Divide verb: The second form of this verb is as shown below: In this situation the identifier-1 or numeric- literal-1 will be divided by identifier-2 or
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, (Comma) : A comma, whenever used in a picture, is considered as an insertion character and inserted wherever it become visible. There can be more than one comma in the pictu
Picture Clause: The picture clause explains the general characteristics of an elementary data item. These characteristics are elaborated below: Class: In COBOL the
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