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PROGRAM FOR SCREEN SECTION:
identification division.
program- id.
environment division.
data division.
working-storage section.
01 a pic 9(2) value 0.
01 b pic 9(2) value 0.
01 c pic 9(3) value 123.
screen section.
01 b-screen.
02 blank screen.
01 screen1.
02 line 3 column 5 pic 9(2) to a auto bell.
02 line 5 column 5 pic 9(2) to b auto bell.
01 screen2.
02 line 7 column 5 pic 9(2) from a blink reverse-video.
02 line 9 column 5 pic 9(2) from b highlight blink.
procedure division.
p0.
display b-screen.
p1.
display screen1.
accept screen1.
display screen2.
compute c = a + b.
display " ".
display " c = " c.
display "Using exhibit".
exhibit c.
stop run.
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 :
RULES FOR OCCURS CLAUSE: The rules apply for the OCCURS clause and the subscripts are as shown below. (1) The integer in the OCCURS clause should be a positive integer.
REWRITE STATEMENT: As in the situation of a relative file, the REWRITE statement needs that the file should be opened in the I-O mode, and if the SEQENTIAL access mode is spec
Introduction to MOVE Verb: The aim of this section is to introduce the learner how to move data from one place to the other place in the memory. This is completed with the help
Edit Characters for Numeric Data: The characters below can be used in the PICTURE clause to indicate the editing. Z * $ - + CR DB . , B O /
PROGRAM FOR RENAMES CLAUSE: identification division. program- id. environment division. data division. working-storage section. 01 emp. 02 empdet.
Example of File-control: The assign clause assigns a specific physical peripheral device name to a file. The physical peripheral device are machine-dependent. We use the devic
PERFORM WITH UNTIL OPTION: The format is as shown below: Illustration: A) Perform p-3 until i > 5. Here p-3 will be executed whenever i B) Perform p-2 thru
Concept of a two-dimensional table: Concept of a two-dimensional table can be easily extended to tables having three or more dimensions. The Handling of tables up to three dim
SEQUENTIAL FILE CREATION AND REWRITING: We have to write a program to create a student file with just two fields: sno i.e. Student Number and same i.e. Student Name. Add a few
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