Android Question Read a value on txt file

Sub getdata(st As String) As Int
Dim str() As String
If st.Contains("casa=") Then
    str = Regex.Split("=",st)
    Return str(1)
End If
If st.Contains("teste=") Then
    str = Regex.Split("=",st)
    Return str(1)
End If
return -999
End Sub

Dim m As Map = File.ReadMap(...)
Log(m.Get("casa"))
Log(m.Get("teste"))