Question

Why should a variable not be declared as a module variable?

Answer 1

if we are declared is a module variable it is not visible outside the class

Answer 2

Ques. Why should a variable not be declared as a module variable?

1)  It prevents a procedure from being self contained.

2)  It makes it easier to document the code.

3)  Local variable names can be reused in other procedures.

4)  Both a and b.

5)  All of the above.

Answer:

The correct option is 5) All of the above.

Explanation:

In a computer programming language, declaring a variable is a statement that specifies the variable name and data type. A declaration informs the compiler of the existence and position of an entity in the programme. You should also initialise a variable when you declare it.

For each module, a module-level variable is specified. All procedures in that module have access to it, but not the rest of the programme.

A variable should not be declared as a module variable because:

• It makes it impossible for a technique to be self-contained.
• It makes documentation of the code much easier.
• The names of local variables can be reused in subsequent operations.

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