Android Question Textwriter question

Dim firstword as String = "First"
Dim secondword as String = "Second"
Do Until firstword.Length = 25
   firstword = firstword & chr(32)
Loop
TextWriter1.WriteLine(firstword & secondword)

    Dim Leaf As String = "Leaf"
    Dim green As String = "Green"
    Dim space As String
    For i = 1 To 25 - Leaf.Length
        space = space & Chr(32)
    Next
    Log($"${Leaf}${space}${green}"$)

Private Sub Button1_Click
    Dim Leaf As String = "Leaf"
    Dim green As String = "Green"
    Log($"${Leaf}${Repeat(Chr(32), 25-Leaf.Length)}${green}"$)
End Sub

Private Sub Repeat(c As Char, n As Int) As String
    Dim Result As String
    For i = 1 To n
        Result = Result & c
    Next
    Return Result
End Sub

Private Sub Repeat(c As Char, n As Int) As String
    Dim sb As StringBuilder
    sb.Initialize
    For i = 1 To n
        sb.Append(c)
    Next
    Return sb.ToString
End Sub