What is the term used for a variable that receives an argument that passed into a module?
Which type of variable is visible to very module and the entire program. global variable. What is the term used for the variable that receives an argument that passed into a module? Parameter.
When an argument is passed by value the communication channel works only in one direction quizlet?
When an argument is passed by value, the communication channel works only in one direction. Passing an argument by value is a means of establishing two-way communication between modules. Modules make it impossible for programmers to work in teams.
What type of variable is visible to all modules and the entire program?
Introduction to Programming 03
| Question | Answer |
|---|---|
| Passing an argument by ________ means that only a copy of the argument’s value is passed into the parameter variable. | value |
| Which type of variable is visible to every module and the entire program? | Global |
Which type of variable is defined within a module and is only visible within that module?
Module-level variables can be either public or private. Public variables are available to all procedures in all modules in a project; private variables are available only to procedures in that module.
How do you define a module level variable?
A module-level variable is declared for a particular module. It is available to all procedures within that module but not to the rest of the application. Module-level variables remain in existence for the lifetime of the application and preserve their values.
Can a module have two variables of the same name?
*A module can have two variables of the same name because they are within the same scope. *The scope of a variable is the segment of the program in which the variable can be accessed.
Can variables belonging to different scope have same name?
Yes — the scopes will not overlap so there will be two local variables, one per method, each with the same name.
What happens when a global variable and a local variable share the same name?
If you declare a local variable and a global variable with the same name, the local variable will take precedence when you use it inside a function. This type of behavior is called shadowing. Simply put, the inner variable shadows the outer.
Can variable and function name same?
You cant because if you have example(), ‘example’ is a pointer to that function. You can declare local variables with the same name as a global variable, but the local variable will shadow the global. As long as your local a is in scope, the symbol a refers to your local variable.
Can main be a variable name?
main is not a reserved identifier and it is allowed to name variables as main in C. (C11, 7.1. 3p1) “All identifiers with external linkage in any of the following subclauses (including the future library directions) and errno are always reserved for use as identifiers with external linkage.”
Which can never be sent by call by value?
Which of the following can never be sent by call-by-value? Explanation: None. Explanation: None.
Which one of the following is a correct way of calling a function?
Function blocks begin with the keyword def followed by the function name and parentheses ( ( ) ). Any input parameters or arguments should be placed within these parentheses. You can also define parameters inside these parentheses.
Which one of the following is the correct way of calling a function Function_name?
Explanation: By using function_name() we can call a function in Python. So option A is correct.
Which loop is faster in C language?
Some situation, we can use while loop or do-while loop interchangeably. One of my friend told me that such situation we should use do-while loop. Because it is faster than while.
Which loop is most efficient?
Repeat keeps iterating until a condition is false, whereas a while loop is the opposite. Pros: It turns out that Repeat is actually quite a bit more efficient than While, demonstrated below. Repeat may have the convenience that in many situations, the condition is not known or even defined until inside the loop.
Is for loop better or while?
In general, you should use a for loop when you know how many times the loop should run. If you want the loop to break based on a condition other than the number of times it runs, you should use a while loop.
Which loop is guaranteed to execute at least one time?
The only loop that will always get executed is the do while loop. As far as the do while loop is considered then the condition is not evaluated until you reach the end of a loop.
When a Do While loop is run the loop is guaranteed to execute at least one time?
The DO-WHILE loop for C++ The do-while loop is similar to the while loop, except that the test condition occurs at the end of the loop. Having the test condition at the end, guarantees that the body of the loop always executes at least one time.
Which loop executes at least once if the condition is false?
do while loop