Scope and lifetime of variables, Visual Basic Programming

Assignment Help:

The scope of a variable is finding out by where you declare it. While you declare a variable in a procedure, only code in that procedure can access or alter the value of that variable. It contain local scope and is called a procedure-level variable. If you declare a variable outside a process, you make it visible to all the process in your script. It is script-level variable, and it contain script-level scope.

How long a variable exists describe its lifetime. The lifetime of script-level variable extends from the time this is declared till the time the script is finished running. At process level, a variable exists only as long as you are in the process. While the procedure exits, the variable is destroyed. Local variables are ideal like temporary storage space while a process is executing. You can have local variables of the similar name in many different procedures because each is identified only by the process in which it is declared.


Related Discussions:- Scope and lifetime of variables

Use serialize function in document class to implement file, USE OF SERIALIZ...

USE OF SERIALIZE FUNCTION IN DOCUMENT CLASS TO IMPLEMENT FILE void CStoreDoc::Serialize(CArchive& ar) { if (ar.IsStoring()) { // TODO: add storing code here }

Sdi application - types of project using visual c++, SDI Application T...

SDI Application The SDI application uses the main frame window to exhibit a document. Only one document can be opened at a particular time.

Repeating statements while a condition is true, Use the While keyword to ve...

Use the While keyword to verify a condition in a Do...Loop statement. You can verify the condition before you enter the loop (as illustrated in the following ChkFirstWhile instance

Odbc, ODBC   The ODBC gives an API which distinguishes the data base v...

ODBC   The ODBC gives an API which distinguishes the data base vendors implementation via the ODBC drivers specific to a DBMS. The program will use the API to call the ODBC dr

Dictionary, how to make dictionary in vb using ms access

how to make dictionary in vb using ms access

#simple interest using pseudocode and flowcharts, simple interest using flo...

simple interest using flowchart and psuedocode using the formular s= x + nrx

Intrinsic controls, INTRINSIC CONTROLS   The Intrinsic controls are th...

INTRINSIC CONTROLS   The Intrinsic controls are the built-in controls. Few of the controls are Combo box, Check box, Command Button, Label etc. The controls have properties re

Simple programming, For this assignment you have to design and implement a ...

For this assignment you have to design and implement a VB.NET project which prepares a bill of payment due, given the purchase amount. The project models a typical purchase transac

Displaying a file with scrolling - document class, Displaying a file With S...

Displaying a file With Scrolling: To display a file with the scrolling option allows the steps as shown below: 1. Generate a SDI application. 2. In the Step 6 of the App

Insertion and deletion in algorithm, translate''Q''for insert into element ...

translate''Q''for insert into element and''Q''delete for deletion element into programming language

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd