Android Question less numbers after the decimal point in the answer. (Basic calculator)

Mahares said:

Try this concept. It will work for you:

B4X:

Dim MyString As String="6.59163647839E35"
Dim strVar() As String=Regex.Split("E",MyString)
Msgbox("My result is = " & NumberFormat(strVar(0),1,4) & "E" & strVar(1),"")  'displays: 6.59163E35

Click to expand...

Mahares said:

The calculation will yield a value (Myresult) before it is plugged into the text box. You can then have this code:

B4X:

Dim MyResult As String
Dim strVar() As String=Regex.Split("E",MyResult)
EditText1.text=NumberFormat(strVar(0),1,4) & "E" & strVar(1) 'The text box will show the format: 9999E99

Click to expand...

Sub Globals
   
    Dim ans As String
    Dim strVar() As String=Regex.Split("E",ans)
   
End Sub


Sub Button12_Click  'equal button

If Sign = "*" Then
    ans = one * two
    EditText1.text = NumberFormat(strVar(0),1,4) & "E" & strVar(1)
    Stat = 1
    End If

margret said:

You can not do the Regex in Globals, it has no value. It must be used after you have an answer that needs corrected only. Your Button12_Click sub should look something like this:

B4X:

Sub Button12_Click
    Dim MyString As String
    MyString = "6.59163647839E35" 'This is where you must assign your answer to MyString, this is just a sample
    If MyString.Contains("E") Then
        Dim strVar() As String = Regex.Split("E", MyString)
        Log("My result is = " & NumberFormat(strVar(0),1,4) & "E" & strVar(1))
    Else
        Log("My result is = " & MyString)
    End If
End Sub

Click to expand...