Class-8 Computer Chapter-6 Intorduction to visual basic

 

WRITE DOWN IN YOUR COMPUTER NOTBOOK

D.Answer the following questions:-

Que-1  Write the steps to create a calculator In visual basic?

Ans-1  Step-1 Using visual basic design a form interface as shown below:

         Step-2 The next stp is changing the name property of the controls as             shown below:

          a.Number 1 Text box: txtNum1

          b.Number 2 Text box: txtNum2

          c.Result text ox: txtResult

          d.Add Button: cmdAdd

          e.Subtract Button: cmdsubtract

          f.Multiply Button: cmfMul

          Step-3 Double click on the Add button and type the given code in the cmdAdd_click() event handler.txtResult. Text=Val(txtNum1.Text)+Val(txtNum2.Text)

          Step-4 Now add the given code in the cmdsub_click()event handler and cmdMul_click() event handler.

          Step-5 Press f5 to run the project.

 Que-2 Define the Visual Basic?

Ans-2 Visual Basic is a programming language that offers a graphical user interface to design and develop programs while when you compare it to the other popular programming language that is widely used QBASIC it only offers a text based interface.

 Que-3 Give Difference between visual basic and QBASIC.

Ans-3 (1.)In QBASIC, programming is done in a text-only environment and the program is executed sequentially.

 (2)In Visual Basic, programming is done in a graphical environment.

Users may click on a certain object randomly, so each object has to be programmed independently to be able to response to those actions (events).

 Que-4 What is Code View?

Ans-4 CodeView is something which indicates a process or principle of making what is viewed clearer by the special way in which the code and its associations, dependencies, etc, are presented.

 Que-5 What is Solution Explorer?

Ans-5 Solution Explorer displays the projects that form your solution, the files and folders in a project as they appear on the physical hard drive, and any assemblies, COM objects or files the project references.