Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
NESTED IF STATEMENT:
The then and else statement of an IF statement can hold other IF statements. The involved IF statements in their turn may also hold other IF statements. These inclusion of one or more IF statements within the scope of the IF statement is termed as nesting. Note that the most inclusive IF statement should have a terminating period and therefore this statement along with all the included statements is frequently termed as NESTED IF STATEMENT.
As the else phrase in an IF statement is optional, the nested If sentence may have less ELSEs than Ifs. This makes the interpretation of the nested IF sentence quite difficult. The initial step in interpreting such a sentence would be to find out that ELSE belongs to which IF and which are the IFs that do not have the corresponding ELSEs. Once this is completed, the actions specified for the various cases can be recognized easily. To avoid any ambiguity in an interpretation, the COBOL rule is as shown below.
The nested IF sentence must be examined in the left- to-right manner to encounter each
ELSE in the order of its appearance. As soon as an ELSE is encountered, it should be paired with the instantly preceding IF which has not yet been paired with the other ELSE.
Note that the above rule can also helps in detecting those Ifs for which the ELSE phrase may be absent.
The above rule states how the COBOL compiler will interpret a nested IF sentence. And hence, while writing such a sentence this rule should be applied to verify that the interpretation of the compiler will not be different from what is intended. The illustrations below are used to show how the meaning of a nested IF sentence can be obtained by applying the above rules.
PROGRAM FOR ADD CORRESPONDING: We have to write a simple program to demonstrate Add Corresponding. identification division. program- id. environment division.
Group Item as Operand in the Relational Condition: Whenever an operand of a relational condition is the group item, the item is then considered to be an alphanumeric field. Th
COBOL Words: The COBOL word can be formed by using the characters as shown below: 0-9 A-Z (a-z) - (hyphen) The rules below should be hold in forming the COBOL words.
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
Character Set: To study any language, first one should know the alphabets of the language and they are termed as character set in general. There are 50 different characters in
PROGRAM FOR DIVIDE VERB: We have to write an easy program to elaborate DIVIDE verb. You can also use edit characters in the program. Identification division. Program-
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
ADD VERB: The ADD Verb can be used to find the sum of two or more numbers and to store the sum. The ADD verb takes any one of the two forms as shown below:
Configuration Section: This section holds an overall specification of the computer used for the purpose of the compilation and execution of the program. There are in all 3 par
Example of Accept statement: For illustration, ACCEPT FLAG-A can be specified to read the value of the FLAG_A from the console. It may be keep in mind that no file definition
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd