Write a visual program to calculate average using runtime textbox

Write a visual program to calculate average using runtime text-box
Design window:-

Code:

Dim t1 As TextBox
Dim t2 As TextBox
Dim t3 As TextBox
Dim t4 As TextBox
Dim a As Integer
Dim b As Integer
Dim c As Integer

Private Sub cmdClear_Click()
t1.Text = ""
t2.Text = ""
t3.Text = ""
t4.Text = ""
t1.SetFocus
End Sub

Private Sub cmdDisplay_Click()
 a = Val(t1.Text)
 b = Val(t2.Text)
 c = Val(t3.Text)
 t4.Text = (a + b + c) / 3
End Sub

Private Sub cmdExit_Click()
Unload Me
End Sub
Private Sub Form_Activate()
    Set t1 = Controls.Add("VB.TextBox", "t1")
    t1.Visible = True
    t1.Height = 600
    t1.Width = 2200
    t1.Top = 100
    t1.Left = 3200
    t1.SetFocus
           
    Set t2 = Controls.Add("VB.TextBox", "t2")
    t2.Visible = True
    t2.Height = 600
    t2.Width = 2200
    t2.Top = 800
    t2.Left = 3200
       
    Set t3 = Controls.Add("VB.TextBox", "t3")
    t3.Visible = True
    t3.Height = 600
    t3.Width = 2200
    t3.Top = 1500
    t3.Left = 3200
       
    Set t4 = Controls.Add("VB.TextBox", "t4")
    t4.Visible = True
    t4.Height = 600
    t4.Width = 2200
    t4.Top = 2200
    t4.Left = 3200
End Sub

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OUTPUT

Write a Visual Basic program to implement the find and replace dialogue box for text-box

Design an application in Visual Basic to implement the find and replace dialogue box for text-box control with multiple line of text with 3 option buttons and check boxes

Design window of form:-

Code:-
Dim txt As String
Dim s, l, r As Integer
Private Sub Check1_Click(Index As Integer)
    If Check1(0).Value = 1 Then
        Text1.Font.Bold = True
    Else
        Text1.Font.Bold = False
    End If
    If Check1(1).Value = 1 Then
        Text1.Font.Italic = True
    Else
        Text1.Font.Italic = False
    End If
    If Check1(2).Value = 1 Then
        Text1.Font.Underline = True
    Else
        Text1.Font.Underline = False
    End If
End Sub

Private Sub cmdClear_Click()
Option1(0).Value = False
Option2(1).Value = False
Option3(2).Value = False

Check1(0).Value = 0
Check2(1).Value = 0
Check3(2).Value = 0
End Sub

Private Sub cmdExit_Click()
Unload Me
End Sub

Private Sub cmdFind_Click()
txt = InputBox("enter Text to find")
l = Len(txt)
r = InStr(1, Text1.Text, txt, vbTextCompare)
Text1.SelStart = r - 1
Text1.SelLength = l
End Sub

Private Sub cmdFindNext_Click()
If r <> Len(Text1.Text) Then
    r = InStr(r + 1, Text1.Text, txt, vbTextCompare)
    Text1.SelStart = r - 1
    Text1.SelLength = l
Else
    MsgBox "No more Text", vbInformation, "Find"
End If
End Sub

Private Sub cmdReplace_Click()
txt1 = InputBox("Enter text to replace")
Text1.Text = Replace(Text1.Text, txt, txt1)

End Sub

Private Sub Form_Load()
Text1.Text = "Design an application in VB to implement the find and replace dialogue " & _
            "box for textbox control with multiple line of text with 3 option buttons and check boxes and"
End Sub

Private Sub Option1_Click(Index As Integer)
If Option1(0).Value = True Then
    Text1.Font.Name = "Arial"
ElseIf Option1(1).Value = True Then
    Text1.Font.Name = "Arial Black"
Else
    Text1.Font.Name = "Times New Roman"
End If
End Sub


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OUTPUT