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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.
.(Period or Decimal Point) : The period may be used to insert a decimal point and may not come into view more than once. Both the period and V cannot appear in similar picture
Data Names and Identifiers: The Data name provides reference to the storage space in the memory where the real value is stored. This value takes part in the operation whene
Valid and Invalid Word - Cobol words: Valid Word Invalid Word & Reason emp-sal -pay ( it starts with a hyphen) TOTAL MARK (blank space em
ADD and SUBTRACT CORRESPONDING: The CORRESPONDING option can also used with the ADD and SUBTRACT verbs. The following are some of the formats of these verbs with the CORRESPON
program
77 level used for- It is Elementary level item. it Cannot be subdivisions of other items or cannot be qualified, or they can be subdivided themselves.
WRITE STATEMENT: The records are written to be logical place as determined from the value of the record key. The INVALID KEY condition occurs in the cases shown below: (i)
RULES OF MOVE VERB: The Data movement is managed by the rules which are as shown below: (a) The contents of the identifier - 1 or the value of the literal - 1 is moved to
Column and Field in COBOL program: In COBOL there are 2 types of entries termed as margin A and margin B entries. The Margin A entries start from the column 8, 9, 10 or 11 and
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
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