SubString help

Hi friend,

import java.io.*;
import java.io.IOException;

public class FileReadExample {
public static void main(String args[]) throws IOException {
try{
BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Please enter file name");

String str = buff.readLine();
File file = new File(str);
FileInputStream fstream = new FileInputStream(file);
// Get the object of DataInputStream
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine;

//Read File Line By Line
while ((strLine = br.readLine()) != null) {
// Print the content on the console
System.out.println(strLine);
String subString = str.substring(0);
System.out.println("String after index: " + subString);
subString = str.substring(1,2);
System.out.println("Substring (1,2): " + subString);
}
//Close the input stream
in.close();
}
catch (Exception e){//Catch exception if any
System.err.println("Error: " + e.getMessage());
}
}
}

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