Android Question Substring2 Error java.lang.StringIndexOutOfBoundsException: length=6773; reg...

Sub Button1_Click
'Send a GET request
   job3.Initialize("Job3", Me)
   job3.Download("http://www.tcmb.gov.tr/kurlar/today.xml")
  
  
End Sub


Sub JobDone (Job As HttpJob)
   Log("JobName = " & Job.JobName & ", Success = " & Job.Success)
   Dim tcmb As String
   Dim USD As String
   If Job.Success = True Then
     Log(Job.GetString)
    tcmb = Job.GetString
    tcmb=tcmb.SubString(200)
            Log("result1=" & tcmb.Length) '6773
         Log("result2=" & tcmb.IndexOf("US DOLLAR</CurrencyName><ForexBuying>")) '74
        
        USD= tcmb.SubString2(74,30)
    'Log(tcmb.SubString2(tcmb.IndexOf("US DOLLAR</CurrencyName><ForexBuying>"),4))
    
Else
      Log("Error: " & Job.ErrorMessage)
      ToastMessageShow("Error: " & Job.ErrorMessage, True)
   End If
   Job.Release
End Sub

** Service (httputils2service) Create **
** Service (httputils2service) Start **
JobName = Job3, Success = true
Message longer than Log limit (4000). Message was truncated.
<?xml version="1.0" encoding="ISO-8859-9"?>

<?xml-stylesheet type="text/xsl" href="isokur.xsl"?>

<Tarih_Date Tarih="16.12.2014" Date="12/16/2014" Bulten_No="2014/238"><Currency CrossOrder="0" Kod="USD" CurrencyCode="USD"><Unit>1</Unit><Isim>ABD DOLARI</Isim><CurrencyName>US DOLLAR</CurrencyName><ForexBuying>2.3671</ForexBuying><ForexSelling>2.3714</ForexSelling><BanknoteBuying>2.3654</BanknoteBuying><BanknoteSelling>2.375</BanknoteSelling><CrossRateUSD>1</CrossRateUSD><CrossRateOther></CrossRateOther></Currency><Currency CrossOrder="1" Kod="AUD" CurrencyCode="AUD"><Unit>1</Unit><Isim>AVUSTRALYA DOLARI</Isim><CurrencyName>AUSTRALIAN DOLLAR</CurrencyName><ForexBuying>1.947</ForexBuying><ForexSelling>1.9597</ForexSelling><BanknoteBuying>1.938</BanknoteBuying><BanknoteSelling>1.9715</BanknoteSelling><CrossRateUSD>1.2129</CrossRateUSD><CrossRateOther></CrossRateOther></Currency><Currency CrossOrder="2" Kod="DKK" CurrencyCode="DKK"><Unit>1</Unit><Isim>DAN�MARKA KRONU</Isim><CurrencyName>DANISH KRONE</CurrencyName><ForexBuying>0.39721</ForexBuying><ForexSelling>0.39916</ForexSelling><BanknoteBuying>0.39693</BanknoteBuying><BanknoteSelling>0.40008</BanknoteSelling><CrossRateUSD>5.9502</CrossRateUSD><CrossRateOther></CrossRateOther></Currency><Currency CrossOrder="9" Kod="EUR" CurrencyCode="EUR"><Unit>1</Unit><Isim>EURO</Isim><CurrencyName>EURO</CurrencyName><ForexBuying>2.9601</ForexBuying><ForexSelling>2.9654</ForexSelling><BanknoteBuying>2.958</BanknoteBuying><BanknoteSelling>2.9698</BanknoteSelling><CrossRateUSD></CrossRateUSD><CrossRateOther>1.2505</CrossRateOther></Currency><Currency CrossOrder="10" Kod="GBP" CurrencyCode="GBP"><Unit>1</Unit><Isim>�NG�L�Z STERL�N�</Isim><CurrencyName>POUND STERLING</CurrencyName><ForexBuying>3.7083</ForexBuying><ForexSelling>3.7277</ForexSelling><BanknoteBuying>3.7057</BanknoteBuying><BanknoteSelling>3.7333</BanknoteSelling><CrossRateUSD></CrossRateUSD><CrossRateOther>1.5693</CrossRateOther></Currency><Currency CrossOrder="3" Kod="CHF" CurrencyCode="CHF"><Unit>1</Unit><Isim>�SV��RE FRANGI</Isim><CurrencyName>SWISS FRANK</CurrencyName><ForexBuying>2.4591</ForexBuying><ForexSelling>2.4749</ForexSelling><BanknoteBuying>2.4554</BanknoteBuying><BanknoteSelling>2.4786</BanknoteSelling><CrossRateUSD>0.9604</CrossRateUSD><CrossRateOther></CrossRateOther></Currency><Currency CrossOrder="4" Kod="SEK" CurrencyCode="SEK"><Unit>1</Unit><Isim>�SVE� KRONU</Isim><CurrencyName>SWEDISH KRONA</CurrencyName><ForexBuying>0.30955</ForexBuying><ForexSelling>0.31275</ForexSelling><BanknoteBuying>0.30933</BanknoteBuying><BanknoteSelling>0.31347</BanknoteSelling><CrossRateUSD>7.6145</CrossRateUSD><CrossRateOther></CrossRateOther></Currency><Currency CrossOrder="6" Kod="CAD" CurrencyCode="CAD"><Unit>1</Unit><Isim>KANADA DOLARI</Isim><CurrencyName>CANADIAN DOLLAR</CurrencyName><ForexBuying>2.0288</ForexBuying><ForexSelling>2.038</ForexSelling><BanknoteBuying>2.0213</BanknoteBuying><BanknoteSelling>2.0457</BanknoteSelling><CrossRateUSD>1.1652</CrossRateUSD><CrossRateOther></CrossRateOther></Currency><Currency CrossOrder="11" Kod="KWD" CurrencyCode="KWD"><Unit>1</Unit><Isim>KUVEYT D�NARI</Isim><CurrencyName>KUWAITI DINAR</CurrencyName><ForexBuying>8.0722</ForexBuying><ForexSelling>8.1778</ForexSelling><BanknoteBuying>7.9511</BanknoteBuying><BanknoteSelling>8.3005</BanknoteSelling><CrossRateUSD></CrossRateUSD><CrossRateOther>3.4293</CrossRateOther></Currency><Currency CrossOrder="7" Kod="NOK" CurrencyCode="NOK"><Unit>1</Unit><Isim>NORVE� KRONU</Isim><CurrencyName>NORWEGIAN KRONE</CurrencyName><ForexBuying>0.31211</ForexBuying><ForexSelling>0.31421</ForexSelling><BanknoteBuying>0.31189</BanknoteBuying><BanknoteSelling>0.31493</BanknoteSelling><CrossRateUSD>7.5657</CrossRateUSD><CrossRateOther></CrossRateOther></Currency><Currency CrossOrder="8" Kod="SAR" CurrencyCode="SAR"><Unit>1</Unit><Isim>SUUD� ARAB�STAN R�YAL�</Isim><CurrencyName>SAUDI RIYAL</CurrencyName><ForexBuying>0.63069</ForexBuying><ForexSelling>0.63182</ForexSelling><BanknoteBuying>0.62596</Banknot
Message longer than Log limit (4000). Message was truncated.
result1=6773
result2=74
Error occurred on line: 224 (main)
java.lang.StringIndexOutOfBoundsException: length=6773; regionStart=74; regionLength=-44
at java.lang.String.startEndAndLength(String.java:593)
at java.lang.String.substring(String.java:1474)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:636)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:302)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:238)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:121)
at anywheresoftware.b4a.BA$3.run(BA.java:320)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4921)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1027)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
at dalvik.system.NativeStart.main(Native Method)

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