Работа с файлами на java

public static String loadFileAsString(File file, String encoding) throws IOException
{
InputStreamReader f= encoding==null?
new FileReader(file):
new InputStreamReader(
new FileInputStream(file),encoding);
 
StringBuffer sb= new StringBuffer();
 
try {
  char[] buf= new char[32768];
  int len;
  while ((len=f.read(buf,0,buf.length))>=0) {
    sb.append(buf,0,len);
  }
  return sb.toString();
} 
finally {
          try {f.close();} catch (Exception e) {};
          }
}

public static void saveFileFromString(String fileName, String encoding, String v) throws IOException
{
saveFileFromString(new File(fileName),encoding,v);
}
public static void saveFileFromString(File file, String encoding, String v) throws IOException
{
if (v==null) {
   file.delete(); 
   return;
}
char[] buf= new char[v.length()];
v.getChars(0,buf.length,buf,0);
saveFileFromChars(file,encoding,buf);
}
public static void saveFileFromChars(String fileName, String encoding,char[] buf)throws IOException
{
saveFileFromChars(new File(fileName),encoding,buf);
}
public static void saveFileFromChars(File file, String encoding, char[] buf) throws IOException
{
if (buf==null) {
   file.delete(); 
   return;
}
saveFileFromChars(file,encoding,buf,0,buf.length);
}
public static void saveFileFromChars(File file, String encoding,char[] buf, int off, int len)
throws IOException
{
if (buf==null) {
   file.delete();
   return;
}
OutputStreamWriter f= encoding==null?
new FileWriter(file):
new OutputStreamWriter(new FileOutputStream(file),encoding);
try {
f.write(buf,off,len);
} 
catch (IOException e) {
  try {f.close();} catch (Exception e1) {};
  return;
 }
 f.close();
}