B4J Question Read line x line from text file

[cstangor]

Can I read from a text file line by line? not file.readstring or file.readlist because the file is too big.

Thanks in advance

 

[Daestrum]

Try

    Dim fr,br As JavaObject
    fr.InitializeNewInstance("java.io.FileReader",Array("c:/temp/testinput.txt")) 
    br.InitializeNewInstance("java.io.BufferedReader",Array(fr))
    Dim st As String =     br.RunMethod("readLine",Null)
    Do While st  <> "null"    ' will be "null" at end of file
        Log(st)
        st = br.RunMethod("readLine",Null)
    Loop
    br.RunMethod("close",Null)

 

[Erel]

Another option:

Dim tr As TextReader
tr.Initialize(File.OpenInput(...))
Dim st As String = tr.ReadLine
Do While st <> Null
   Log(st)
   If (st = "abc") Then Exit
   st = tr.ReadLine
Loop