How do you write if-else condition in COBOL?

COBOL IF-ELSE Statement

The statement inside the IF block will execute if the condition of IF statement is true.
The statement inside IF block will not execute when the condition of IF statement is false.

What is nested IF statement in COBOL?

NESTED IF: – IF statement coded within another IF statement called as NESTED IF statement.

Is the syntax of if-else statement?

Syntax. If the Boolean expression evaluates to true, then the if block will be executed, otherwise, the else block will be executed. C programming language assumes any non-zero and non-null values as true, and if it is either zero or null, then it is assumed as false value.

What is the difference between if and evaluate in COBOL?

There is no end to the depth of COBOL nested IF statements. But, when the COBOL program has to examine a variable for more than two levels, EVALUATE is the more preferred choice. Evaluate statement in COBOL is faster than nested IF-ELSE statements.

What is evaluate statement in COBOL?

EVALUATE statement is used for conditional processing which helps in eliminating a series of nested IF statements to test several conditions. The EVALUATE statement is very similar to the CASE construct common in many other programming languages.

What is on size error in COBOL?

In Visual COBOL, the ON SIZE ERROR condition exists when the value resulting from an arithmetic operation exceeds the capacity of the specified picture-string. In RM/COBOL, the ON SIZE ERROR condition exists when the value resulting from an arithmetic operation exceeds the capacity for the associated data item.

What is evaluate true in COBOL?

EVALUATE TRUE – EVALUATE have the boolean expression and WHEN phrases have the logical expressions. If EVALUATE specified with TRUE, the statements under WHEN phrase with logical expression is TRUE gets executed. If none of the WHEN logical-expression satisfies, then WHEN OTHER phrase gets executed.