COBOL perguntas e respostas de entrevista
Pergunta 46. What is the purpose of the REJECT statement in COBOL?
The REJECT statement in COBOL is used to return a record to an input file after it has been read. It is often used in conjunction with the REWRITE statement.
Example:
READ INPUT-FILE INTO DATA-RECORD.
IF CONDITION
REJECT DATA-RECORD.
END-IF.
Pergunta 47. Explain the concept of the COMPUTATIONAL-3 clause.
The COMPUTATIONAL-3 (COMP-3) clause in COBOL is used to define packed-decimal data items. It represents decimal numbers in a packed format for efficient storage.
Example:
01 AMOUNT PIC 9(5) COMP-3.
Pergunta 48. What is the purpose of the ALTER statement in COBOL?
The ALTER statement in COBOL is used to modify the properties of data items at runtime. It allows dynamic changes to the length, picture, or usage of data items.
Example:
ALTER ITEM-DESCR TO PIC X(30).
Pergunta 49. Explain the concept of the EXIT SECTION statement.
The EXIT SECTION statement in COBOL is used to terminate the current section prematurely. It allows the program to skip the remaining code within a particular section.
Example:
PERFORM PROCESS-DATA SECTION.
IF ERROR-FLAG = 'Y' THEN
EXIT SECTION.
END-IF.
Pergunta 50. What is the purpose of the GENERATE statement in COBOL?
The GENERATE statement in COBOL is used to dynamically create new paragraphs or sections during program execution. It enhances the flexibility and adaptability of the program.
Example:
GENERATE 'NEW-PARAGRAPH'.
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