How to accelerate loading resource file in J2ME - file

Question

I'm writing a J2ME application using J2ME Wireless Toolkit 2.2
I have the following code:
public class BusReader
{
private String[] fileNames;
private final String allFilesInfoFile = "files_in_dir";
public BusReader ()
{
fileNames = getFileNames ();
String busNo = getBusNo ("BusNo1p.bin");
}
public String[] getAllBusFiles ()
{
return fileNames;
}
public String getBusNo (String fileName)
{
String[] fileLines = loadResourceFile (fileName);
int linesCount = fileLines.length;
for (int i=0;i<linesCount;++i)
if (fileLines[i].equals ("[BusNo]") && i < linesCount-1)
return fileLines[i+1];
return null;
}
public String getDefaultDirection (String fileName)
{
String[] fileLines = loadResourceFile (fileName);
int linesCount = fileLines.length;
for (int i=0;i<linesCount;++i)
if (fileLines[i].equals ("[BusDirection]") && i < linesCount-1)
return fileLines[i+1];
return null;
}
private String[] getFileNames ()
{
return loadResourceFile (allFilesInfoFile);
}
private String[] loadResourceFile (String fileName)
{
String content = "";
try
{
Reader in = new InputStreamReader(this.getClass().getResourceAsStream(fileName), "iso-8859-2");
StringBuffer temp = new StringBuffer(1024);
char[] buffer = new char[1024];
int read;
while ((read=in.read(buffer, 0, buffer.length)) != -1)
temp.append(buffer, 0, read);
content = temp.toString();
} catch (IOException e) {
return null;
}
int len = content.length ();
if (content.charAt (len-1) == '\n' && content.charAt (len-2) == '\r')
{
String newContent = "";
for (int i=0;i<len-2;++i)
newContent += content.charAt (i);
content = newContent;
}
String[] fileLines = TString.Split ("\r\n", new TString(content));
for (int i=0;i<fileLines.length; ++i)
{
fileLines[i] = fileLines[i].trim ();
if (fileLines[i].length () == 0)
fileLines[i] = "";
}
return fileLines;
}
}
All works correctly, but the problem is when I'm trying to copy my application into mobile phone. On my mobile phone when I open the application before application show I must wait 35 seconds. This is because, constructor executes the function twice:
loadResourceFile (String fileName)
which loads the resource file. Files size which function is loading are: 1.22KB and 29KB.
The question is: How to accelerate loading function (loadResourceFile)?
I tried to create java class files as resource data but it exceeded java memory limit. I changed arrays String[][][][] to String[][][] and it was loading on my mobile phone in 15 seconds. I thought when I will load data as a resource it will work faster. My mobile phone: Nokia 3110c

Answer 1

I found it.
It was following lines (it takes 35 seconds):
if (content.charAt (len-1) == '\n' && content.charAt (len-2) == '\r')
{
String newContent = "";
for (int i=0;i<len-2;++i)
newContent += content.charAt (i);
content = newContent;
}