Cobol Developer

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Cobol Developer Interview Questions and Answers

Updated 13 Jun 2024

Q1. What is difference between comp and comp3 variable

Ans.

Comp is a binary storage format for integers, while comp3 is a packed decimal storage format.

  • Comp variables are stored in binary format, taking up less space than comp3 variables.

  • Comp3 variables are stored in packed decimal format, allowing for easier decimal arithmetic operations.

  • Comp variables are more efficient for arithmetic operations, while comp3 variables are easier to read and understand.

  • Example: comp variable - 1234, comp3 variable - 1234.

Q2. Explain importance of evaluate

Ans.

Evaluate statement is important in COBOL for conditional processing and decision making.

  • Used to compare values and execute specific statements based on conditions

  • Helps in controlling program flow and logic

  • Can be used with various conditions like WHEN, ALSO, END-EVALUATE

  • Example: EVALUATE TRUE WHEN condition-1 ... WHEN condition-n ALSO ... END-EVALUATE

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