The following lines are valid.
Dim h As String = "Hello"
txtBox.Text = CStr(h.IndexOf("h"))

Question

The following lines are valid.
Dim h As String = "Hello" 
txtBox.Text = CStr(h.IndexOf("h"))

Quizplus · Accepted Answer

The first line is valid because it declares a string variable named h and assigns it the value "Hello". The second line is also valid because it uses the IndexOf method of the string object h to find the index of the character "h" in the string. The result of the IndexOf method is then converted to a string using the CStr function and assigned to the Text property of the txtBox control.

The Following Lines Are Valid