Create a calculator application, Visual Basic Programming

Assignment Help:

Create a VB calculator application that appears as in the screen shots below.

79_calculator.png

1349_calculator 1.png

The user enters numbers in the textboxes labelled Number 1 and Number 2. When a calculation button (Add, minus etc.) is pressed, the result for the appropriate calculation appears in the textbox labelled Answer and the appropriate operation symbol (+, - etc.) appears between the number textboxes.
Whenever the user starts to enter a new number (Number 1 or 2), the operation symbol +, -, etc. is to disappear and the Answer and operation symbol are to be blanked out to prevent the display of incorrect results, as shown below:

Whenever the user clicks or tabs to the textboxes labelled Number 1 and Number 2, the field is to be blocked so that a completely new number can be entered.
The Answer textbox is to be locked to prevent manual editing of any displayed results. Also code is required to provide appropriate error checks for the entry of non-numeric (including blank) Number 1 and Number 2 fields, and to prevent a divide by zero error (for both Divide and Modulo). Any detected errors should be accompanied by an appropriate error message with focus being given to the textbox containing the erroneous value to facilitate correction.
Meaningful variable/control names and appropriate comments should be provided.

552_calculator 2.png


Related Discussions:- Create a calculator application

Illustration of mdi application using a project, ILLUSTRATION OF MDI APPLIC...

ILLUSTRATION OF MDI APPLICATION USING A PROJECT 1. Choose the MDI option while generating the project by using the Appwizard. 2. Add the WM_LBUTTONDOWN message for the view

Tab order - dialog, Tab Order: The tab order stands for the order in w...

Tab Order: The tab order stands for the order in which the controls receive focus when the user clicks the tab key. The CTRL + D can be used to set the tab order of controls.

For each next loop - vbscript, A For Each...Next loop is similar to a For.....

A For Each...Next loop is similar to a For...Next loop. Rather than repeating the statements a particular number of times, For Each...Next loop repeats group of statements for each

Check whether a number is palindrome or not, Function IsPalindrome(str) ...

Function IsPalindrome(str) Dim iStart,iEnd,ctr,blnPalin str=trim(str) blnPalin=true iEnd=len(str) iCnt=round(iEnd / 2) iStart=1 for ctr=1 to cint(iCnt) if(mid(str,iEnd,

Properties - intrinsic control, Properties: Every control has a defaul...

Properties: Every control has a default property related with it. The default property does not require to be named when you are functioning. The control Check box as value

Number property, Returns or sets a numeric value indicating an error. Numbe...

Returns or sets a numeric value indicating an error. Number is the Err object's default property. While returning user-defined error from an Automation object, set Err.Number throu

Context-sensitive help, CONTEXT-SENSITIVE HELP   The Context-sensitive...

CONTEXT-SENSITIVE HELP   The Context-sensitive help gives online help for the circumstances which is associated with that state. The Context-sensitive help can be implemented

Ddx - dialog data exchange, DDX - Dialog Data Exchange: The Data membe...

DDX - Dialog Data Exchange: The Data members can be related with specific controls in the dialog box. When the dialog box is displayed, the DDX will transfer the values into t

Associating images to toolbars - visual basic, Associating Images to Toolba...

Associating Images to Toolbars: 1. Add an Image list to your form from the tool box. 2. Pick the custom property of the image list. 3. Click the images tab. 4. Select

Lotto program, You are asked to create the LOTO game customized according t...

You are asked to create the LOTO game customized according to the following constraints: 1. Create a grid containing 20 numbers (20 buttons: button1, button2, …button20) 2. When t

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