Question

Use visual studios language C++ to creat Form1 and Designer Form for question below

3. Form has three textboxes, two for input and one for output. Form also has five buttons, marked, ‘+’, ‘-’, ‘*’, ‘/’, ‘C’ respectively.

User enters integers into the two textboxes, and clicks one of the four buttons (+, - , *, /). The third textbox shows the result of the corresponding operation. For example, if user entered 10 into the first textbox and 2 into the second textbox, and clicked the * button, 20 will display in the third textbox.

For division, the result should display with three digits after the decimal point. (This is graded based on your code, not on the number of digits actually displayed, which may vary depending on the inputs)

The ‘C’ button will get the form ready for the next set of inputs.

You can assume that the user will never enter 0 into the second textbox.

No error checking is expected.

You can assume that the user will not leave a textbox empty.

Layout of the controls - you can choose.

If the user presses Enter after typing in the two inputs, the sum should be displayed.

If the user presses Esc, the form should get ready for the next set of inputs.

Enter and Esc refer to the Enter key and Esc key on your keyboard, respectively.

You may attempt simple methods without risking any loss of points for errors in how you create and use them.

Answer 1

<!-- Javascript for multipication -->
<script language="javascript" type="text/javascript">
function multiply(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a*b;
document.my_cal.total.value=c;
}
</script>

<!-- Javascript for addition -->
<script language="javascript" type="text/javascript">
function addition(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a+b;
document.my_cal.total.value=c;
}
</script>

<!-- Javascript for subtraction -->
<script language="javascript" type="text/javascript">
function subtraction(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a-b;
document.my_cal.total.value=c;
}
</script>

<!-- Javascript for division -->
<script language="javascript" type="text/javascript">
function division(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a/b;
document.my_cal.total.value=c;
}
</script>

<!-- Opening a HTML Form. -->
<!-- <form name="my_cal"> -->

<form name="my_cal">
  
<!-- Here user will enter 1st number. -->
Number 1: <input type="text" name="first">
  
<!-- Here user will enter 2nd number. -->
Number 2: <input type="text" name="second">

<!-- Here result will be displayed. -->
<br>Result:<input type="text" name="total"> </br>

<form onreset>
<input type="button" value="+" onclick="javascript:addition();">
<input type="button" value="-" onclick="javascript:subtraction();">
<input type="button" value="*" onclick="javascript:multiply();">
<input type="button" value="/" onclick="javascript:division();">
<input type="reset" value="C">
</form>

</form>