Page 85 - TCS ICT Book 8

The City School 2021-2022

Declaring a Public Variable

Declaring a public variable is not different from declaring a private variable. The only
difference is that the public variable is accessible from anywhere in the whole program.

Follow the steps below to create a program for a simple counter by using a public
variable. Developing Applications

1. Create a new form and save it with

the name of Simple Counter.

2. Add 2 buttons from the toolbox.
Change the text property of one
button to Reset and set the text

property of the other button to Add

from the properties panel.
3. Set the name property of Reset
and Add button to btnRst and

btnAdd respectively.

4. Add a label from the toolbox and
set the text property to Result from
the properties panel.

5. Now that both elements codes are

included in the script, we will create How Does it Work?
a public variable that is accessible • Reset button code which will declare the
for both buttons/elements. pub variable to 0. pub is the public variable
Label1.Text = pub will display the text of pub
variable in Label1 element.
• Add button code will add 1 to the current
value of the pub variable. Label1.Text = pub
will display the text of pub variable in Label1
element after adding 1 every time the button
is pressed.

Mobile App vs Website
A website of browser-based HTML pages that are linked together and accessed

over the Internet. Mobile apps are actual applications that are downloaded and
installed on your mobile device, rather than being rendered within a browser.

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