BufferedReader readLine() issue: detecting end of file and empty return lines

Question

I want my program to do something when it finds the end of a file (EOF) at the end of the last line of text, and something else when the EOF is at the empty line AFTER that

Answer 1

I tried reading from a BufferedReader that received its input from a socket input stream. Everything worked fine until the last line, where the readLine() would just simply hang because the browser wouldn't send a newline terminator on post data.

This is my solution, to be able to read until the end of the input stream.

public String getLine(BufferedReader in) 
{
    StringBuilder builder = new StringBuilder();
    try {       
        while(in.ready()) { 
            char input = (char)in.read();
            /**
              * This method only matches on " \r\n" as a new line indicator.
              * change as needed for your own line terminators
              */
            if(input == '\r') {
                /** If we can read more, read one more character
                  * If that's a newline, we break and return.
                  * if not, we add the carriage return and let the 
                  *    normal program flow handle the read character
                  */
                if(in.ready()) {
                    input = (char)in.read();
                    if(input == '\n') {
                        break;
                    }
                    else {
                        builder.append('\r');
                    }
                }
            }
            builder.append(input);
        }       
    }
    catch(IOException ex) {
        System.out.println(ex.getMessage());
    }
    return builder.toString();
}